The mean, variance, and standard deviation of the number of federal government employees who use e-mail can be calculated using the binomial distribution formula.
Given that 88% of federal government employees use e-mail, we can define the probability of success (p) as 0.88 and the number of trials (n) as 210.
The mean of a binomial distribution is given by μ = np, where μ is the mean and n is the number of trials. Therefore, the mean of the number of federal government employees who use e-mail is μ = 210 * 0.88 = 184.8.
The variance of a binomial distribution is given by \(\sigma^2 = np(1-p)\), where \(\sigma^2\) is the variance and n is the number of trials. Therefore, the variance of the number of federal government employees who use e-mail is σ^2 = 210 * 0.88 * (1-0.88) = 21.504.
The standard deviation of a binomial distribution is the square root of the variance. Therefore, the standard deviation of the number of federal government employees who use e-mail is σ = sqrt(21.504) ≈ 4.637.
In summary, the mean of the number of federal government employees who use e-mail is 184.8, the variance is 21.504, and the standard deviation is approximately 4.637. These values represent the average, spread, and deviation from the mean, respectively, for the number of federal government employees who use e-mail in a sample of 210 individuals.
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A
O
Question 3
A bank manager writes the exponential function a-3.38(1.0194)" to represent the value, in thousands of dollars, of an account after n years. The domain of this function is the set of whole numbers.
Which recursive formula also represents the value of the account?
an=3.38(1): a = 1.0194
a=3.38(1): ag-1.0194
a=1.0194(3-1): a = 3.38
D a=1.0194(-1); ao -3.38
B
C
C2022 Iluminate Education, Inc.
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Q Review/✔ Finish
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Dec 19
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The recursive formula that represents the value of account is a (n) = 1.0194 ;a (n-1); V (0) = 3.38.
What is meant by recursive formula?Any term of a series can be defined by its preceding term in a recursive formula (s).
What is the general formula to find recursion?The general formula to find recursion is \(a_{n}= ra_{n-1}\) where r is the common ratio and n should ne grater than 2.
a (n) = 3.38. a (n-1);a (1) = 1.0194
a(n) = 3.38. a (n - 1);a (0) = 1.0194
a(n) = 1.0194. a (n-1);a (1) = 3.38
a (n) = 1.0194 .a (n-1); a (0) = 3.38
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How do you calculate seed number?
To calculate seed number, divide the total number of inches available for crop by the in-row crop spacing. For example, 120 inches divided by one inch per pea seed equals 120 pea seeds.
What is seed?In botany, a seed is an undeveloped plant embryo and food reserve encased in a protective outer covering. In a broader sense, "seed" refers to anything that can be sown, such as seed and husk or tuber.
Seeds are formed when a ripened ovule is fertilised by pollen-derived sperm, resulting in a zygote. The embryo develops from the zygote within a seed, forming a seed coat around the ovule and growing to a certain size within the mother plant before growth stops.
The formation of seeds is a stage in the reproduction of seed plants (spermatophytes). Other plants, such as ferns, mosses, and liverworts, lack seeds and must reproduce exclusively through water.
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Mutually Exclusive events A. Contain all sample points B. Contain all common sample points C. Does not contain any sample point D. Does not contain any common sample point E. None of the above
The correct answer is E. None of the above. The term "mutually exclusive events" refers to events that cannot occur simultaneously. In other words, if one event happens, the other event cannot happen at the same time.
Option A, "Contain all sample points," does not accurately describe mutually exclusive events. Mutually exclusive events do not need to include all possible sample points.
Option B, "Contain all common sample points," is also incorrect. Mutually exclusive events do not share any common sample points.
Option C, "Does not contain any sample point," is not true for mutually exclusive events. Mutually exclusive events can still have sample points, but those sample points cannot be shared between the events.
Option D, "Does not contain any common sample point," is also incorrect. While mutually exclusive events do not have any common sample points, this option does not accurately capture the concept of mutually exclusive events.
Therefore, the correct answer is E. None of the above.
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Mutually Exclusive events are- A. Contain all sample points B. Contain all common sample points C. Does not contain any sample point D. Does not contain any common sample point E. None of the above
Which of the following is the correct option?
What is the value of x?
Answer:
55
Step-by-step explanation:
x - 9 = 1/2(x + 37) according to inscribed angles theorem
2x - 18 = x + 37
x = 55
3. The volume of a large cube is 125 cubic inchesadu
The volume of the smaller cube is 8 cubic inches, 0268
What is the difference between the length of one side
of the larger cube and the length of one side of the wo
smaller cube?
The difference between the length of one side of the larger cube and the length of one side of the smaller cube is 3cm.
How to calculate the value?It should be noted that the volume of the larger cube is 125 inches³. Therefore, the length of the side will be:
= 3✓125
= 5 inches
The volume of the smaller cube is 8 inches. Therefore, the length will be the cube root of 8 inches and this will be 2 inches.
Therefore, the difference between the length of one side of the larger cube and the length of one side of the smaller cube will be:
= 5cm - 2cm
= 3cm.
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PART 1 Please help me 10 points i just joined today ;)
PART 2 is on other question
Answer:
B=30,000
Y=The Plane's altitude
M= -2,000
X= Minutes
Equation: y=-2,000x+30,000
Slope= ?
Y-intercept= the point where you start at
what is the altitude after 10 minutes?=10,000
How Long does it take to get to 0 altitudes?=15 (Minutes)
Step-by-step explanation:
What are the choices for slope
combine like terms (6n+7y)+(5+6n)+(-3y-3)
Answer:
12n + 4y + 2
Step-by-step explanation:
6n+6n
7y-3y
5-3
apologies if this is incorrect :)
What is the correct answer?
Answer:
2.38 yds^3
Step-by-step explanation:
Volume of a box = width x length x height
Now we multiply!!
? = 1 x 1.7 x 1.4
1 x 1.7 x 1.4 = 2.38
Have an amazing day!!
Please rate and mark brainliest!!
\( \huge\fbox\orange{ANSWER} \)
\( \mathsf \purple{v = l \times w \times h}\)
\( \mathsf \pink{v = 1.7 \times 1 \times 1.4}\)
\( \mathsf \purple{v = 2.38 {yd}^{3} }\)
2.38 cubic yards
are two angles that lie in the same plane and have a common vertex and a common side but have no common interior points.
Adjacent angles are two angles that lie in the same plane and have a common vertex and a common side but have no common interior points.
What is Adjacent angles?The terms adjacent, neighboring, contiguous, and juxtaposed all denote being close by. Although adjacent might indicate a touch or not, it is usually assumed that there is nothing of the same sort in between. a home with a garage close by. Adjoining clearly means coming together and touching at a certain location or line.
When two angles have a similar vertex and side, they are referred to as neighboring angles. The vertex of an angle is the point at which the rays that make up its sides come to a stop. When adjacent angles have the same vertex and side, they might be a complimentary angle or supplemental angle.
Thus, adjacent angles are two angles that lie in the same plane and have a common vertex and a common side but have no common interior points.
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Which of the following questions below can be answered using the sum -12+10
PLSS helpp it’s a test I will give brainliest
An experiment consists of rolling two fair number cubes. The diagram shows the sample space of all equally likely outcomes. What is the probability of roiling the two dice with a sum of 9? Express your answer as a fraction in simplest form.
Answer:
The answer should be 1/6 or 1/3
Step-by-step explanation:
1/9 is the probability of roiling the two dice with a sum of 9
What is Probability?It is a branch of mathematics that deals with the occurrence of a random event.
An experiment consists of rolling two fair number cubes.
We need to find the probability of roiling the two dice with a sum of 9
The sample space of rolling two dice is given from the figure.
Among that (3,6), (6,3), (4, 5) and (5,6) makes a sum of nine.
In the total of 36 outputs there are only 4 outputs which has sum of 9.
So the probability of roiling the two dice with a sum of 9 is 4/36
Four divided by thirty six is equal to 1/9
Hence, 1/9 is the probability of roiling the two dice with a sum of 9
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Differentiate the function with respect to x
f(x)= x^4/ x^2- 4
Show work
Answer:
Step-by-step explanation:
\(f(x)=\frac{u}{v} ,u~ and~ v~ functions~ of~ x\\f'(x)=\frac{v ~u'-u~v' }{v^2} \\f(x)=\frac{x^4}{x^2-4} \\f'(x)=\frac{(x^2-4)*4x^3-x^4(2x)}{(x^2-4)^2} \\=\frac{2x^3(2x^2-8-x^2) }{(x^2-4)^2} \\=\frac{2x^3(x^2-8)}{(x^2-4)^2}\)
Add or subtract the following polynomials.
1. 7x-(4xy+12xy)-2
2. (5bc)-(5+bc)
3. 7+(2x-5x)+y
4. 6x+10+[3x-6x]
5. 3x²y-(5x²y)
With solutions pls
Answer 1:
7x-16xy-2
Answer 2:
4bc-5
Answer 3:
7-3x+y
Answer 4:
3x+10
Answer 5:
-2x²y
Solving Solutions Question #1
*Remove the parentheses for addition or subtraction*
\(7x-\left(4xy+12xy\right)-2\)
*Determine the sign*
\(7x-4xy-12xy-2\)
*Reorder and gather like terms*
\(7x+\left(-4xy-12xy\right)-2\)
*Collect coefficients of like terms*
\(7x+\left(-4-12\right)\timesxy-2\)
*Calculate the sum or difference*
\(7x-16xy-2\)
Solving Solutions Question #2*Simplify or expand*
\(5bc-\left(5+bc\right)\)
*Remove the parentheses for addition or subtraction*
\(5bc-5-bc\)
*Reorder and gather like terms*
\(\left(5bc-bc\right)-5\)
*Collect coefficients of like terms*
\(\left(5-1\right)\) \(\times\) \(bc-5\)
*Collect the sum or difference*
\(4bc-5\)
Solving Solution Question #3*Simplify or expand*
\(7+(2x-5x)+y\)
*Determine the sign*
\(7+2x-5x+y\)
*Reorder and gather like terms*
\(7+\left(2x-5x\right)+y\)
*Collect coefficients of like terms*
\(7+\left(2-5\right)\timesx\) \(\times\) \(x+y\)
*Calculate the sum or difference*
\(7-3x+y\)
Solving Solution Question #4*Simplify or expand*
\(6x+10+(3x-6x)\)
*Determine the sign*
\(6x+10+3x-6x\)
*Reorder and gather like terms*
\((6x+3x-6x)+10\)
*Collect coefficients of like terms*
\((6+3-6)\) × \(x+10\)
*Apply the Inverse Property of Addition*
\(3x+10\)
Solving Solution #5*Simplify or expand*
\(3x^{2} y-5x^{2} y\)
*Collect coefficients of like terms*
\((3-5)x^{2} y\)
*Calculate the sum or difference*
\(-2x^{2} y\)
I hope this helps you:)
help please -2x+3=x+12
Step-by-step explanation:
-2x+3=x+12
combin like terms
-2x-x=12-3
-3x=9
x=9/-3
x=-3
Answer:X=-3
Step-by-step explanation:
Which expression gives the volume of a sphere with radius 7?
O A.
(7³)
OB. 4 (7²)
O C.
(7²)
O D. 4 (7³)
The required expression is
(4/3)π(7)³
What is volume?
In three-dimensional space, volume is the area occupied by an object within its borders. Another name for it is an object's capacity.
We are given to select the correct expression that gives the volume of a sphere with a radius of 7 units.
We know that,
the VOLUME of a sphere with radius 'r' units is given by
V=(4/3)πr³
Here, the radius of the given sphere is
r = 7 units.
Therefore, the volume of the sphere will be
V=(4/3)π(7)³
Thus, the required expression is
(4/3)π(7)³
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Define the formula for a parabola (a quadratic function) that has horizontal intercepts (roots) at x=8.4 and x=7.3 and passes through the point (0,8.2).
Formula of parabola for given values is F(x) = 7.5(x^2-15.7x+61.32)
What is parabola?The general equation of a parabola in math is: y = a(x-h)^2 + k ,where (h,k) denotes the vertex. The standard equation of a the parabola is y^2 = 4ax.
According to given data:We have, horizontal intercepts x=8.4 and x=7.3, passes through point(0, 8.2)
As we parabola is quadratic function,
f(x) = a(x-8.4)(x-7.3)
It is passing through the point (0, 8.2)
8.2 = a(-8.4)(-7.3)
a = 8.2/61.32 =7.5 (approx)
Now, equation of parabola is
F(x) = 7.5(x-8.4)(x-7.3)
f(x) = 7.5(x^2-7.3x-8.4x+61.32)
F(x) = 7.5(x^2-15.7x+61.32)
Thus, required equation of parabola is F(x) = 7.5(x^2-15.7x+61.32).
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The regression line is called the least squares line because it is the line that results in the __________ sum of the squared __________.
Answer:
Smallest
Vertical deviations
Step-by-step explanation:
Both Fred and Ed have a bag of candy containing a lemon drop, a cherry drop, and a lollipop. Each takes out a piece and eats it. What are the possible pairs of candies eaten? A. Lemon-lemon, cherry-lemon, lollipop-lollipop, lemon-cherry, cherry-cherry, lemon-lollipop, lollipop-cherry, cherry-lollipop, lollipop-lemon B. Cherry-lemon, lemon-lollipop, lollipop-cherry, lollipop-lollipop, lemon-lemon C. Lemon-cherry, lemon-cherry, lemon-cherry, lemon-lollipop, lemon-lollipop, lemon-lollipop, cherry-lollipop, cherry-lollipop, cherry-lollipop D. Lemon-lemon, cherry-lemon, lollipop-lollipop, lemon-lollipop, cherry-cherry, lemon-lollipop, lollipop-cherry, cherry-lemon, lollipop-lemon
Answer:
A. Lemon-lemon, cherry-lemon, lollipop-lollipop, lemon-cherry, cherry-cherry, lemon-lollipop, lollipop-cherry, cherry-lollipop, lollipop-lemon
Step-by-step explanation:
From the above question, we are told that both Fred and Ed have a bag of candy containing a lemon drop, a cherry drop, and a lollipop
There are two events here's
2 people = Fred and Ed
3 bags of different sweets = Lemon Cherry and Lollipop
The number of ways that both of them can eat this singly is calculated using combination formula
C(n, r) = nCr = n!/r! (n - r)!
n = 3, r = 2 = 3C2 = 3!/2! (3 - 2)!
= 3 × 2 × 1/2 × 1
= 3
We were asked to find the possible pairs
Hence = 3² = 9
There are 9 possible pairs through which Fred and Ed can eat their sweets and they are:
1) Lemon - Lemon
2) Cherry - Cherry
3) Lollipop - Lollipop
4) Lemon - Cherry
5) Cherry - Lemon
6) Lollipop - Cherry
7) Cherry - Lollipop
8) Lollipop - Lemon
9) Lemon - Lollipop.
Therefore, Option A is the correct option
Answer:
LEMONS BURN YOUR HOUSE DOWN JK its this A. Lemon-lemon, cherry-lemon, lollipop-lollipop, lemon-cherry, cherry-cherry, lemon-lollipop, lollipop-cherry, cherry-lollipop, lollipop-lemon
Step-by-step explanation:
From the above question, we are told that both Fred and Ed have a bag of candy containing a lemon drop, a cherry drop, and a lollipop
There are two events here's
2 people = Fred and Ed
3 bags of different sweets = Lemon Cherry and Lollipop
The number of ways that both of them can eat this singly is calculated using combination formula
C(n, r) = nCr = n!/r! (n - r)!
n = 3, r = 2 = 3C2 = 3!/2! (3 - 2)!
= 3 × 2 × 1/2 × 1
= 3
We were asked to find the possible pairs
Hence = 3² = 9
There are 9 possible pairs through which Fred and Ed can eat their sweets and they are:
1) Lemon - Lemon
2) Cherry - Cherry
3) Lollipop - Lollipop
4) Lemon - Cherry
5) Cherry - Lemon
6) Lollipop - Cherry
7) Cherry - Lollipop
8) Lollipop - Lemon
9) Lemon - Lollipop.
Therefore, Option A is the correct option
which of the following has 3-fold rotational symmetry? which has 4-fold rotational symmetry? (do not consider irregularities in the drawings.(a) An isosceles triangle(b) An equilateral triangle(c) A tetrahedron(d) A cube
(b) An equilateral triangle has 3-fold rotational symmetry, while (d) A cube has 4-fold rotational symmetry.
Rotational symmetry refers to the property of an object where it looks the same after it has been rotated a certain number of degrees around a central point. The number of times an object looks the same after a full rotation is called its order of rotational symmetry.
(a) An isosceles triangle has no rotational symmetry because it will not look the same after any degree of rotation around its center.
An isosceles triangle has no rotational symmetry. This is because it will not look the same after any degree of rotation around its center. For example, if you rotate an isosceles triangle by 180 degrees, it will be upside down and look completely different.
An equilateral triangle has 3-fold rotational symmetry. This means that it will look the same after being rotated 120 degrees and 240 degrees around its center. To see this, imagine drawing an equilateral triangle and marking its center. If you rotate the triangle 120 degrees around the center, each vertex will be in the same position as before, and the triangle will look the same. Similarly, if you rotate it 240 degrees, it will look the same as the original triangle.
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When buying advertiing time on televiion or in magazine, advertier calculate the cot per thouand (CPM) people reached by the ad. If the cot of advertiing wa $100,000 and the reach or circulation wa 10,000,000 people, what would be the CPM? (Note: M i the Roman numeral for 1,000. )
If the cost of advertising was $100,000 and the reach or circulation was 10,000,000 people, then the CPM is $10.
Cost per thousand (CPM), which is also called cost per mille, is a marketing word used to denote the price of 1,000 advertisement prints on one web page. If a publisher of a website charges $2.00 CPM, that means an advertiser must pay $2.00 for every 1,000 prints of its ad.
The CPM is calculated by dividing the cost of the advertisement by the number of people reached and then multiplying by 1000.
Given that the cost of advertising was $100,000 and the reach was 10,000,000 people, the CPM can be calculated as follows:
CPM = ($100,000 / 10,000,000) × 1000 = $10.
So, the CPM is $10.
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carpetland salespersons average per week in sales. steve contois, the firm's vice president, proposes a compensation plan with new selling incentives. steve hopes that the results of a trial selling period will enable him to conclude that the compensation plan increases the average sales per salesperson.
Carpetland not $8,000 in step with week in earnings. Vice President, proposes a plan with new selling incentives with the want that the plan will increase the not earnings in step with earnings are more than $8,000 in step with week.
It implies, The null hypothesis, H: μ≤$8,000 in step with week. The possibility hypothesis, H: μ>$8,000 in step with week where μ is the whole not unusual place earnings in step with week.
Type II mistakes is defined due to the fact the opportunity of now now not rejecting the false-null hypothesis i.e. now now not rejecting the null whilst it is false. Therefore, if we do now now not reject that the not earnings are a great deal much less than or same to $8000 (and end that the not unusualplace earnings may be a great deal much less than same to $8000) whilst in fact it is more than $8000 then we are growing a type II mistakes.
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alpha writes the infinite arithmetic sequence \[10, 8, 6, 4, 2, 0 ,\ldots.\]beta writes the infinite geometric sequence \[9, 6, 4, \frac{8}{3}, \frac{16}{9}, \ldots.\]gamma makes a sequence whose $n^{\text{th}}$ term is the product of the $n^{\text{th}}$ term of alpha's sequence and the $n^{\text{th}}$ term of beta's sequence: \[10\cdot 9 \quad,\quad 8\cdot 6\quad ,\quad 6\cdot 4\quad,\quad 4\cdot \frac83\quad,\quad 2\cdot \frac{16}{9}\quad,\quad \ldots.\]what is the sum of gamma's entire sequence?
Consecutive terms in the α sequence have a common difference of
8 - 10 = 6 - 8 = 4 - 6 = … = -2
so they are given recursively by
\(\begin{cases} \alpha_1 = 10 \\ \alpha_n = \alpha_{n-1} - 2 & \text{for } n\ge2 \end{cases}\)
By substitution, we have
\(\alpha_n = \alpha_{n-1} - 2 \\\\ \alpha_n = \alpha_{n-2} - 2\cdot2 \\\\ \alpha_n = \alpha_{n-3} - 3\cdot2 \\\\ \vdots \\\\ \alpha_n = \alpha_{n-(n-1)} - (n-1)\cdot 2 = \alpha_1 - 2(n-1) = 12-2n\)
Consecutive terms in the β sequence have a common ratio of
6/9 = 4/6 = (8/3)/4 = … = 2/3
so the recurrence for these terms is
\(\begin{cases} \beta_1 = 9 \\\\ \beta_n = \frac23 \beta_{n-1} & \text{for } n\ge2 \end{cases}\)
We can solve for \(\beta_n\) similarly:
\(\beta_n = \dfrac23 \beta_{n-1} \\\\ \beta_n = \left(\dfrac23\right)^2 \beta_{n-2} \\\\ \beta_n = \left(\dfrac23\right)^3 \beta_{n-3} \\\\ \vdots \\\\ \beta_n = \left(\dfrac23\right)^{n-1} \beta_{n-(n-1)} = \left(\dfrac23\right)^{n-1} \beta_1 = \dfrac{2^{n-1}}{3^{n-1}} \cdot 3^2 = \dfrac{2^{n-1}}{3^{n-3}}\)
The γ sequence has \(n\)-th term
\(\gamma_n = \alpha_n \beta_n = (12-2n) \dfrac{2^{n-1}}{3^{n-3}} = (108-18n) \left(\dfrac23\right)^{n-1}\)
and we want to compute
\(\displaystyle \sum_{n=1}^\infty \gamma_n = 108 \sum_{n=1}^\infty \left(\frac23\right)^{n-1} - 18 \sum_{n=1}^\infty n \left(\frac23\right)^{n-1}\)
Recall the sum of an infinite geometric series with common ratio \(|r|<1\) converges to
\(\displaystyle \sum_{n=1}^\infty r^{n-1} = \frac1{1-r}\)
so that
\(\displaystyle \sum_{n=1}^\infty \left(\frac23\right)^{n-1} = \frac1{1-\frac23} = 3\)
For the remaining sum, we can use the method shown in question [24494877] to compute
\(\displaystyle \sum_{n=1}^\infty nr^{n-1} = \frac1{(1-r)^2}\)
which gives
\(\displaystyle \sum_{n=1}^\infty n \left(\frac23\right)^{n-1} = \frac1{\left(1-\frac23\right)^2} = 9\)
Then the infinite sum of the terms of γ converges to
\(\displaystyle \sum_{n=1}^\infty \gamma_n = 108 \cdot 3 - 18 \cdot 9 = \boxed{162}\)
Simplify the following trigonometric expression. cosθtan²θcotθ
This question requires the understanding of trigonometric identities. I'll list the ones that are needed to answer this question:
cotθ = 1 / tanθ
tanθ = sinθ / cosθ
Look at the latter identity. We can rewrite it as such:
tanθ * cosθ = sinθ
We are given the expression:
cosθ * tan²θ * cotθ
Referring to the first trigonometric identity above, substitute cotθ:
cosθ * tan²θ * (1 / tanθ)
Multiply tan²θ and the fraction:
cosθ * (tan²θ / tanθ)
cosθ * tanθ
Refer to the second trigonometric identity:
cosθ * tanθ
sinθ
cosθ * tan²θ * cotθ = sinθ
If you have any questions about how I got to the answer, feel free to ask
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What are the 3 types of solutions an equations can have?
Answer:
Unique Solution.
No Solution.
Infinitely Many Solutions.
Testing a ConjectureWhat is the distance between -5 and 2?-
To find the distance, all you have to do is subtract -5 from 2
Therefore:
\(\begin{gathered} 2\text{ - (-5)} \\ \end{gathered}\)\(2\text{ + 5 = 7}\)You can also calculate the distance using this line:
The early finish times for activities l, m, and p are 35, 27, and 33, respectively. What is the early finish time for activity t?
The early finish time for activity t is unknown and needs to be determined. It cannot be determined from the given information as only the early finish times for activities l, m, and p are given.
To determine the early finish time for activity t, the following steps should be taken:
1. Review the activities that are related to activity t and note their durations.
2. Identify the activities that must be completed before activity t can begin.
3. Calculate the early start time for activity t by adding the duration of all preceding activities.
4. Calculate the early finish time for activity t by adding the early start time and the duration of activity t.
5. Compare the early finish times of activities l, m, and p to the early finish time of activity t.
6. If the early finish time for activity t is greater than any of the other activities, then activity t is the critical activity.
7. If the early finish time for activity t is less than any of the other activities, then activity t is not the critical activity.
8. If the early finish time for activity t is equal to any of the other activities, then activity t could be the critical activity and further investigation is required.
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The slope field for certain differential equae tion is shown below: Which of the following statements about solution y = f (x) the differential equation must be false?
A). The graph of the particular solution that satisfies f "(0)=0 has = point of inflection at x=0 _
B.) The graph of the particular solution that satisfies f (0) =0 is concave up on the interval -k
C) The graph of the particular solution that satisfies f(-1)=1 concave up on the interval -1
D.) The graph of the particular solution that satisfies f ()=-1is concave down on the interval 0
The slope field shown in the question is that of a differential equation of the form y'= f(x,y).
The solutions of this equation are the curves in the slope field that emanate from each point and that have the same slope as the line at that point. Thus, for each point (x,y) in the slope field, it is possible to calculate the particular solution that passes through that point.
The first statement is false because it involves the second derivative of the particular solution, which cannot be determined from the slope field. The second statement is false because a concave up graph requires that the derivative of the solution be increasing at x=0, but the slope field does not indicate the sign of the derivative of the particular solution. The third statement is false because a concave up graph requires that the derivative of the solution be decreasing at x=-1, which cannot be determined from the slope field. The fourth statement is false because a concave down graph requires that the derivative of the solution be increasing at x=0, which cannot be determined from the slope field.
In summary, none of the statements can be determined to be true or false from the slope field shown.
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Answer:
A system of equations are two or more equations that has to be valid at the same time. It means that the variables of one equation can be substitute in the other equation.
For example we have y=5x−8 and we can substitute this value of y in the other equation
4x+3y=33
4x+3(5x−8)=33 we can solve now for x
4x+15x−24=33
19x=33+24
19x=57
x=5719=3.
y can be obtained from the first equation
y=5x−8
y=5⋅3−8=15−8=7
Then x=3 and y=7.
Step-by-step explanation:
Answer:
x = 3
y = 7
Step-by-step explanation:
y = 5x - 8 ---------------(I)
4x + 3y = 33 ------------(II)
Substitute y = 5x - 8 in equation (II)
4x + 3 (5x - 8) = 33
4x + 3*5x - 8*3 = 33
4x + 15x - 24 = 33 {Combine like terms}
19x - 24 = 33 {Add 24 to both sides}
19x = 33 + 24
19x = 57 {Divide both sides by 19}
x = 57/19
x = 3
Substitute x = 3 in equation (I)
y = 5*3 - 8
y = 15 - 8
y = 7
1 - In a word math problem what do the following words mean: is, of, sum, product.
2 - What is the process for solving for a function's inverse?
Answer:
Step-by-step explanation:
Sum means addition basicaly adding two or more numbers together
Product is when you multiply or times numbers together
First, replace f(x) with y
Replace every x with a y and replace every y with an x .
Solve the equation from Step 2 for y
Replace y with f−1(x) f − 1 ( x )
Verify your work by checking that (f∘f−1)(x)=x ( f ∘ f − 1 ) ( x ) = x and (f−1∘f)(x)=x ( f − 1 ∘ f ) ( x ) = x are both true.
Solve -x2 - 3x = 4 over the set of complex numbers
Answer:
\(\bold{x=\dfrac{-3\pm i\sqrt{7}}{2}}\)
Step-by-step explanation:
Given quadratic equation is:
\(-x^2 - 3x = 4\)
Rewriting the given equation:
\(-x^2 - 3x - 4 = 0\)
OR
\(x^2 + 3x + 4=0\)
Solution of a quadratic equation represented as \(ax^2+bx+c=0\) is given as:
\(x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\)
Comparing the given equation with standard equation:
a = 1
b = 3
c = 4
So, the roots are:
\(x=\dfrac{-3\pm\sqrt{3^2-4\times 1 \times 4}}{2\times 1}\\\Rightarrow x=\dfrac{-3\pm\sqrt{9-16}}{2}\\\Rightarrow x=\dfrac{-3\pm\sqrt{-7}}{2}\)
\(\sqrt{-7 }\) can be written as \(7\sqrt{-1}\)
and \(\sqrt{-1} = i\)
So, \(\sqrt{-7} = i\sqrt7\)
The numbers containing \(i\) in them, are called as complex numbers.
Therefore, the roots of the equation can be written as:
\(\Rightarrow \bold{x=\dfrac{-3\pm i\sqrt{7}}{2}}\)