Answer:
p=2
Step-by-step explanation:
10 – (8p + 3) = 9(2p - 5)
(rearrange and distribute) -8+7=18−45
(Subtract and combine) −26=−52
(Divide and find p) p=2
Answer:
2
Step-by-step explanation:
10-(8p+3)=9(2p-5)
10-8p-3=18p-45
26p=52
p=2
Using the Definitional proof, show that each of these functions is O(x2). (a) f(x) = x (b) f(x) = 9x + 5 (c) f(x) = 2x2 + x + 5 (d) f(x) = 10x2 + log(x)
To show that each function is O(x^2) using the Definitional proof, we need to find a constant c and a positive number k such that |f(x)| ≤ c|x^2| for all values of x greater than some value k.
(a) For function f(x) = x:
We need to find a constant c and k such that |x| ≤ c|x^2| for all x > k.
Let's choose c = 1 and k = 1.
|f(x)| = |x| ≤ 1 * |x^2| for all x > 1.
Therefore, f(x) = x is O(x^2).
(b) For function f(x) = 9x + 5:
We need to find a constant c and k such that |9x + 5| ≤ c|x^2| for all x > k.
Let's choose c = 14 and k = 1.
|f(x)| = |9x + 5| ≤ 14 * |x^2| for all x > 1.
Therefore, f(x) = 9x + 5 is O(x^2).
(c) For function f(x) = 2x^2 + x + 5:
We need to find a constant c and k such that |2x^2 + x + 5| ≤ c|x^2| for all x > k.
Let's choose c = 8 and k = 1.
|f(x)| = |2x^2 + x + 5| ≤ 8 * |x^2| for all x > 1.
Therefore, f(x) = 2x^2 + x + 5 is O(x^2).
(d) For function f(x) = 10x^2 + log(x):
We need to find a constant c and k such that |10x^2 + log(x)| ≤ c|x^2| for all x > k.
Let's choose c = 11 and k = 1.
|f(x)| = |10x^2 + log(x)| ≤ 11 * |x^2| for all x > 1.
Therefore, f(x) = 10x^2 + log(x) is O(x^2).
In each case, we have found a constant c and a value k such that the inequality |f(x)| ≤ c|x^2| holds for all x greater than k. This satisfies the definition of f(x) being O(x^2).
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What is the measure of <LMQ?
Answer:
97
Step-by-step explanation:
92+55=147
180-147=33
85+45=130
180-130=50
50+33=83
180-83=97
Which of the following expressions are equivalent to 1/-7 • -6/5
Mrs. Buchanan gave her two daughters $5 to share equally at the carnival. How much money will each daughter have to spend?
Answer: $2 and 5 cents each
Step-by-step explanation:
Each daughter will equally split up the 5 dollars, so 5 divided by 2, you will get 2.5
PLEASE HELP ILL GIVE BRAINLEST
Circle the like terms:
⅓ x 4x2 8xy -x -5x
Answer:
8xy im pretty sure
Step-by-step explanation:
a boy travelled a distance of 10 km in 2 minutes calculate the speed of that boy
Step-by-step explanation:
(i hope this helps)
speed=distance/time taken
What is the probability of spinning an even number?
Answer:
3/5
Step-by-step explanation:
there are 6 even numbers and 4 odd so 10 in total which is 6/10 and that simplified is 3/5 PLS give me brainliest i beg
The difference of x and y is 14. The value of x is 3 more than
twice the value of y. Write two equations and graph to find
the value of x.
O X = 25
O x = -17
OX= 4
O x = 11
The value of X = 25.
The difference of x and y is 14. The value of x is 3 more thantwice the value of y. Find the value of x and y.Solution:
The two equations are
(i) the first condition is difference of x and y is 14
x - y = 14 ---------equation 1
(ii) the second condition of the given data is value of x is 3 times more than two times of y value.
x - 2y = 3 --------equation 2
From equation 2, we have to separate two variables x and y,
x = 3 + 2y --------equation 3
We have to Substitute equation 3 in equation 1
3 + 2y - y = 14
3 + y = 14
y = 14 - 3
y = 11
Substitute y = 11 in equation 1........
x - 11 = 14
x = 14 + 11
x = 25
So, the value of x is 25 and y is 11.
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Answer:
x - y = 14x - 2y = 3x = 25Step-by-step explanation:
Given the difference of x and y is 14, and the difference of x and 2y is 3, you want two equations, their graph, and the value of x.
EquationsThe difference of 'a' and 'b' is (a -b). Here, the two differences are expressed as the equations ...
x - y = 14x - 2y = 3GraphThe attachment shows a graph of these equations. Their point of intersection is (25, 11), meaning the value of x is 25.
The graph of the first equation is easily drawn by recognizing the x- and y-intercepts are 14 and -14, respectively.
The graph of the second equation will go through the x-intercept point of (3, 0) and the y-intercept point of (0, -3/2). It is probably easier to graph this by hand by considering the x-intercept point and the slope of 1/2.
Algebraic solutionSince we're only interested in the value of x, it is convenient to eliminate the variable y. We can to that by subtracting the second equation from twice the first:
2(x -y) -(x -2y) = 2(14) -(3)
x = 25 . . . . . . . . . simplify
what is the inverse of the given relation? y=2x+6
The inverse of our given equation- would be y=x+6/2 and options B is the correct choice.
What is equation?An equation is a mathematical statement that expression the equality of the expression using of the equal sign equation are used to define relationship between differentiation variables can be used to solve for the unknown's values when you problems equation are also used to describe the behavior of the physical system in the represent law of nature.
We have been given an equation y=2x-6 . We are asked to find the inverse of our given equation.
To find inverse of our given equation, we will interchange x and y variables and solve for y as shown below:
x=2y-6
Switch sides:
2y-6=x
Add 6 on both sides:
2y-6+6=x+6
2y=x+6
Divide both sides by 2:
2y/2=x+6/2
y=x+6/2
Therefore, the inverses of our given equation would've be y=x+6/2 and option B is the correct choice.
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How many weeks are in two years?
In two years, there are roughly 104 weeks. Bimonthly can therefore refer to either every two months or twice a month, even though biweekly is generally understood to indicate every two weeks.
In this dictionary, the adjective biweekly is defined as both "occurring every two weeks" and "occurring twice a week." The word biweekly is defined similarly as "occurring every two months" AND "happening two times a month." The difference between bimonthly and semimonthly is that bimonthly denotes every two months whereas semimonthly denotes once every two months. Similar to biweekly, the term "bimonthly" refers to events occurring every two months. On the other hand, because semi signifies half, semimonthly is twice a month. Two times per month, often on the 15th and last day of the month, a semimonthly payroll is paid.
2 year = 104 weeks
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A juice mixture is six parts, orange juice, and two parts peach juice for every pitcher of the mixture. What fraction of the pitcher each type of juice
The fraction of the pitcher each type of juice are 1/3 and 2/3
Calculation the fraction of the pitcher each type of juiceFrom the question, we have the following parameters that can be used in our computation:
Parts = 6
Orange juice = 1
Peach juice = 2
using the above as a guide, we have the following:
Orange juice : Peach juice = 1 : 2
Multiply by 2
So, we have
Orange juice : Peach juice = 2 : 4
When represented as a fraction, we have
Orange juice = 1/3
Peach juice = 2/3
Hence, the fractions are 1/3 and 2/3
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When rotating the figure you turn it around at a point this can be any coordinate point like the origin which is at?
Answer:
Yes, if you know the coordinates of a point PP in your original figure as (x,y)(x,y), you can figure out the coordinates of PP following rotation and given by (x′,y′)(x′,y′) as
x′=−yx′=−y
y′=xy′=x
Suppose that X and Y are random variables with the same variance. Show that X - Y and X + Y are uncorrelated.
X - Y and X + Y are uncorrelated. To show that X - Y and X + Y are uncorrelated, we need to show that their covariance is zero.
The covariance between X - Y and X + Y is given by:
\(Cov(X - Y, X + Y) = E[(X - Y)(X + Y)] - E[X - Y]E[X + Y]\)
Expanding the first term:
Cov(X - Y, X + Y) = E[X^2 - Y^2] - E[X - Y]E[X + Y]
Using the fact that X and Y have the same variance, we have:
\(E[X^2 - Y^2] = E[(X - Y)(X + Y)] = E[X^2] - E[Y^2]\)
And since X and Y have the same variance\(, E[X^2] = E[Y^2]\), so we can simplify:
\(E[X^2 - Y^2] = 0\)
Next, we can expand the second term:
E[X - Y]E[X + Y] = (E[X] - E[Y])(E[X] + E[Y])
Since X and Y have the same variance, we have E[X] = E[Y], so:
E[X - Y]E[X + Y] = (E[X] - E[X])(E[X] + E[X]) = 0
Putting it all together:
Cov(X - Y, X + Y) = 0 - 0 = 0
Therefore, X - Y and X + Y are uncorrelated.
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Which system of equations is equivalent to the following system?
2x + 4y = 14
4x + y = 20
A.) 2x + 4y = 14
-16x - 4y = -80
B.) 2x + 4y = 14
-4x + y = -20
C.) 4x + 8y = -28
4x + y = 20
D.) 0-2x - 4y = 14
4x + y = 20
Answer:
A
Step-by-step explanation:
Given :
2x + 4y = 14 ---------- eq 1
4x + y = 20 ---------- eq 2
if you multiply eq 2 by -4 on both sides, you get
-4 (4x + y = 20) = -4 (20)
-16x -4y = -80 --------- eq3
we can see that eq. 1 and eq 2 together forms the system of equations presented in option A, Hence A is equvalent to the orginal system of equations given in the question.
The system of equations which is equivalent to the \(2x + 4y = 14\),\(4x + y = 20\) is given in option \((A)\) i.e. \(2x + 4y = 14\) and \(-16x - 4y = -80\).
What is system of equations?System of equations comprises of two or more equations and seeks common solutions to the equations.
We have,
\(2x + 4y = 14\) \(........(i)\)
\(4x + y = 20\) \(........(ii)\)
Now,
To check that which option suits best for system of equation,
Lets multiply equation \((ii)\) by \((-4)\),
\((-4) (4x + y) = (-4)*(20)\)
\(-16x-4y=-80\),
So, this above obtained equation is in option \((A)\).
Hence, we can say that the system of equations which is equivalent to the \(2x + 4y = 14\) ,\(4x + y = 20\) is given in option \((A)\) i.e. \(2x + 4y = 14\) and \(-16x - 4y = -80\).
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Which image shows 1/2÷4? A or B
Answer:
Step-by-step explanation:
Notice that 1/2 divided by 4 is 1/8. Graph A represents this.
Answer:
I think it should be A
Step-by-step explanation:
because of the four boxes before half but I stand to be corrected
⎩⎪⎪⎨⎪⎪⎧f(1)=−62f(n)=f(n−1)+5Find an explicit formula for f(n)f(n)f, left parenthesis, n, right parenthesis.
The recursive formula states that f(n) is equal to f(n-1) plus 5.So, the explicit formula for f(n) is f(n) = -62 + 5(n-1).
To find the explicit formula, we need to analyze the given recursive formula for f(n). We are given that f(1) = -62, indicating the initial value of the sequence. The recursive formula states that f(n) is equal to f(n-1) plus 5.
Based on this information, we can derive the explicit formula as follows:
- For the first term, f(1), we already know the value is -62.
- For the second term, f(2), we can substitute n = 2 into the recursive formula: f(2) = f(2-1) + 5 = f(1) + 5 = -62 + 5 = -57.
- For the third term, f(3), we can substitute n = 3 into the recursive formula: f(3) = f(3-1) + 5 = f(2) + 5 = -57 + 5 = -52.
- We continue this process for each subsequent term, adding 5 to the previous term.
In general, for any value of n, the explicit formula for f(n) is given by f(n) = -62 + 5(n-1). This formula allows us to directly calculate the value of any term in the sequence without relying on the previous terms.
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A city has 5 cm of snow on the ground before a snow storm. During the storm,
Which ratio is the odd one out?
6:24
4:16
1:4
3:12
8:31
Answer:
8:31
Step-by-step explanation:
all of them are equal with 1:4 except 8:31
see photo above to anwser
Answer:
i can see
Step-by-step explanation:
UKDIAMOND is a great place for the people of sentence to get it 4out in a sense that you are a very
Answer:
b = 99°
Step-by-step explanation:
XY is a line segment and so it is a straight line which means that it is a straight angle - 180°
a = 28°
c = 53°
b = ?
=> a + b + c = 180°
=> 28° + b + 53° = 180°
=> b = 180° - (53 + 28)°
=> b = 180° - 81°
=> b = 99°
Therefore b = 99°
Hope it helps :)
in a certain region of space the electric potential is given by v= ay/x bzx^2 c
The electric potential at a specific point in this particular region of space is determined by the constants a, b, and c, as well as the distances z and x.
In a certain region of space, the electric potential is given by v = ay/x + bzx² + c.
Electric potential:
Electric potential refers to the amount of work done per unit charge when moving a positive test charge from infinity to a specific point within an electric field.
In the given region of space, the electric potential at a particular point is defined as v = ay/x + bzx² + c. This equation indicates that the electric potential at a point depends on three parameters, which are as follows:
a, b, and c: These are constants that determine the behavior of the electric potential in the region of space.
z: This variable represents the distance between the origin (reference point) and the point where the electric potential is to be measured.
x: This variable represents the distance of the point from the plane perpendicular to the z-axis at the origin, passing through the point.
Therefore, we can conclude that the electric potential at a specific point in this particular region of space is determined by the constants a, b, and c, as well as the distances z and x.
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for what value of x is cos(x) = sin(14), where 0
Answer:0.2419218956
Step-by-step explanation:
Given: Circle X with radius r and circle
Y with radius s
Statements Reasons
Prove: Circle X is similar to circle Y.
translate X to Y
circle X-circle Y
dilate circle X by slr
circle with center X
has radius center Y
Reasons
X
Answer: answer
Step-by-step explanation: Answer:1. Circle with center X had radius r ; Given
Circle with center Y had radius Y has radius S ; Given
Translate X to Y ; Translation is a similarity transformation
Dilate circle X by s/r ; Dilation is a similarity transformation
Circle X ~ Circle Y ; a composition of similarity transformation maps circle X to circle Y
Answer:
view attachment
Mrs. Jones had 1 3/8 pizzas left after a party. After giving some to Gary, she had 6/8 pizza left. What fraction of a pizza did she give Gary?
Answer:
She gave 5/8 to Gary.
Step-by-step explanation:
1 3/8 as an improper fraction is 11/8. 11/8 - 6/8 is 5/8.
Answer:
5/8
Step-by-step explanation:
Turn a mixed number to an improper fraction: 1 3/8=11/8
Subtract: 11/8-6/8=5/8
5/8
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An equation is modeled. What value of x makes the equation true?
An equation is modeled. The value of x makes the equation true is -1.
Equation:
Conditional comparisons apply only to specific values of variables. An equation consists of two expressions joined by an equal sign ("="). Expressions for both sides of the equals sign are called the "left side" and the "right side" of the equation. Usually the right side of the equation is assumed to be zero. If this is accepted, it does not reduce the generality, since it can be done by subtracting the right side from the two sides.
According to the Question:
5x + 6 = 1
5x = -5
x = -1
Complete Question:
An equation is modeled. What value of x makes the equation true?
(1) 1
(2) 7
(3) -5
(4) -1
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Employees at a company are given £1,100 to spend on items for the office. They decide to buy a coffee machine and as many bean bags as possible. Bean bags cost £30 with an offer of "Buy at least 20 get 20% off the price. "The coffee machine costs £290. How much will they have left over from the £1,100?
there will be no money left over from the £1,100 budget.To calculate how much will be left over from the £1,100 budget, we need to determine the total cost of the coffee machine and the bean bags, and then subtract that amount from the initial budget.
The coffee machine costs £290, which is a fixed price and does not change.
For the bean bags, each bean bag costs £30, but there is an offer of 20% off if at least 20 bean bags are bought. This means that for every 20 bean bags, the cost will be reduced by 20%.
Let's calculate the cost of the bean bags:
Number of bean bags = Total budget - Cost of the coffee machine
Number of bean bags = £1,100 - £290
Number of bean bags = £810
Since each set of 20 bean bags costs £30, we can calculate the number of sets of 20 bean bags that can be bought:
Number of sets = Number of bean bags / 20
Number of sets = £810 / 20
Number of sets = 40.5
Since we can't buy a fraction of a set, we will consider the whole number of sets, which is 40. This means that 40 sets of 20 bean bags will be bought.
The total cost of the bean bags is:
Total cost of bean bags = Number of sets * Cost per set
Total cost of bean bags = 40 * (£30 - 20% of £30)
Total cost of bean bags = 40 * (£30 - 0.2 * £30)
Total cost of bean bags = 40 * (£30 - £6)
Total cost of bean bags = 40 * £24
Total cost of bean bags = £960
Now, let's calculate the remaining budget:
Remaining budget = Initial budget - Total cost of coffee machine - Total cost of bean bags
Remaining budget = £1,100 - £290 - £960
Remaining budget = £1,100 - £1,250
Remaining budget = -£150
Since the remaining budget is a negative value, it means that the initial budget of £1,100 is not enough to cover the cost of the coffee machine and the bean bags. Therefore, there will be no money left over from the £1,100 budget.
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an engineer designed a valve that will regulate water pressure on an automobile engine. the engineer designed the valve such that it would produce a mean pressure of 4.0 pounds/square inch. it is believed that the valve performs above the specifications. the valve was tested on 15 engines and the mean pressure was 4.3 pounds/square inch with a standard deviation of 0.7. a level of significance of 0.05 will be used. assume the population distribution is approximately normal. determine the decision rule for rejecting the null hypothesis. round your answer to three decimal places.
The decision rule will be t>1.761
What is meant be mean and standard deviation?
The ratio of sum of observations to the total number of observation is known as mean. It is one of the central tendency in the statistics. It gives an idea about the central value present in the data. The most sensitive measure of central tendency is mean. It is very easy to calculate. Mean playa a crucial role in daily life. The two types of means are Arithmetic mean and Geometric mean.
Standard deviation is a measure in the statistics. The amount of variation of a set of values is known as standard deviation. Standard deviation is denoted by σ.
This is a right tailed test with degrees of freedom = 15 -1=14
For 14 degrees of freedom and 0.05 significance level,
Critical value = 1.761
So,
The decision rule will be:
Reject if t > 1.761
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please help me with this Pythagoras theorem..
A triangle DEF is right- angled at E, with DE=6.7m and EF=5.5m . find the length of DF.
Answer:
8.7m
Step-by-step explanation:
[6.7]²+5.5}²
=[75.14]
√75.14m
=8.7m
Step-by-step explanation:
\( {(df)}^{2} = {(de)}^{2} + {(ef)}^{2} \\ = {6.7}^{2} + {5.5}^{2} \\ = 44.89 + 30.25 \\ = 75.14 \\ df = \sqrt{75.14} = 8.67m \\ thank \: you\)
convert 25/3 to a mixed number
Answer:
8 and 1/3
Step-by-step explanation:
Answer:
8 1/3
Step-by-step explanation:
25 ÷ 3 = 8 and remainder = 1 =>
25 = 8 × 3 + 1 =>
25/3 =
(8 × 3 + 1) / 3 =
8 + 1/3 =
8 1/3
If h(x)= -5/6x + 7/8 find the following values. Simplify your answer.
H(3)=
H(4)=
H(-1/2)=
If \(h(x)=\frac{-5}{6} x+\frac{7}{8}\) then the value of h(3) = -13/8 , h(4) = -59/24 , h(-1/2) = 31/24 .
In the question , the equation is given as
\(h(x)=\frac{-5}{6} x+\frac{7}{8}\) ....(i)
Part(a)
To find the value of h(3)
we substitute the value of x=3 .
On substituting the value of x=3 in equation (i),
we get ,
h(3) = (-5/6)3+7/8
= -15/6+7/8
taking LCM of 6 and 8 as 24, we get
= -60/24 + 21/24
= (-60+21)/24
= -39/24
Writing in the simplest form we get
= -13/8
so, the value of h(3)= -13/8 .
Part(b)
for h(4) ,we substitute the value of x=4 .
On substituting the value of x=4 in equation (i) ,
we get ,
h(4) = (-5/6)4+7/8
= -20/6+7/8
taking LCM of 6 and 8 as 24, we get
= -80/24 + 21/24
= (-80+21)/24
= -59/24
so , the value of h(4)= -59/24 .
Part(c)
for h(-1/2) ,we substitute the value of x as -1/2 .
On substituting the value of x = -1/2 in equation (i) ,
we get ,
\(h(\frac{-1}{2} )=\frac{-5}{6} *\frac{-1}{2} +\frac{7}{8}\)
= 5/12 +7/8
taking LCM of 12 and 8 as 24, we get
= 10/24 + 21/24
= (10+21)/24
= 31/24
so , the value of h(-1/2)= 31/24 .
Therefore , if h(x) = (-5/6)x+7/8 the the value of h(3)= -13/8 , h(4)= -59/24 and h(-1/2)= 31/24 .
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Make a the subject of the formula v = u + at.
Hence, find the value of a when t = 4, u = 10 and v=50.
Step-by-step explanation:
v = u + at
v-u = at
a = (v -u)/t
When t = 4, u=10, v=50
a = (50-10)/4
a= 40/4
a = 10