Answer:
17
Step-by-step explanation:
STUDY HARD GUYS I NEED HW HELP
Find the probability that when a couple has six children, at least one of them is a boy. (Assume that boys and girls are equally likely.)
The probability of having a boy when a couple has six children is 63 / 64.
What is probability?The ratio of good outcomes to all possible outcomes of an event is known as probability. A lot of successful results for an experimental with 'n' results can be represented by the symbol x.
Given:
A couple has six children, n = 6
The wanted event, p = 1 / 2
Calculate the probability of having a boy given by the following formula,
\(P(X) = nC_x px (1-p)n-x\)
Here, \(X\) = number of boys,
So,
P(X >= x) = 1 - P(X = 0)
P (X) = 1 - 6C₀ × (1 / 2) 0 × (1/2) 6
P (X) = 63 / 64
Therefore, the probability of having a boy when a couple has six children is 63 / 64.
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The number of research papers in Dr. Carey's area of expertise has been increasing by 3% every year. Given that 34,176 research papers were published this year, how many will be published 2 years from now?
If necessary, round your answer to the nearest whole number..
After 2 years there will be 6257 research papers published from now if the Dr. Carey's area of expertise has been increasing by 3% every year.
What is an exponential function?It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent \(\rm y = a^x\)
where a is a constant and a>1
We have:
The number of research papers in Dr. Carey's area of expertise has been increasing by 3% every year.
We are assuming there is exponential increase.
So,
After 2 years the published research papers (a)
a = 34,176(1 + 0.03)²
Because increasing by 3%(0.03) every year.
a = 34176(1.03)²
a = 36257.31 ≈ 36257 research papers
Thus, after 2 years there will be 6257 research papers published from now if the Dr. Carey's area of expertise has been increasing by 3% every year.
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If a firm has a production quota of 400=5x1^2+8x1x2+15x2^2, what combination of good x1 and x2 should the firm produce to minimize cost of C=x1^2+x2^2
The firm should produce good x₁ = 4 and x₂ = 8 to minimize cost of C = x₁² + x₂² .
What is Lagrange multipliers ?
Lagrange multipliers is a method used in optimization problems to find the maximum or minimum value of a function subject to one or more constraints. The method involves introducing a Lagrange multiplier, which is a scalar variable, to the objective function and the constraint(s). This forms the Lagrangian function, which is then optimized with respect to the original variables and the Lagrange multiplier.
To minimize the cost C = x₁² + x₂²
We can use the method of Lagrange multipliers to solve this problem. Let's define the Lagrangian function L as:
L(x₁, x₂, λ) = x₁²+ x₂² + λ(400 - 5x₁²- 8x₁x₂ - 15x₂²)
Taking partial derivatives of L with respect to x₁, x₂, and λ, we get:
∂L/∂x₁ = 2x₁ - 10λx₁ - 8λx₂ = 0
∂L/∂x₂ = 2x₂ - 30λx₂ - 8λx₁ = 0
∂L/∂λ = 400 - 5x₁² - 8x₁x₂ - 15x₂² = 0
Solving these equations simultaneously, we get:
x₁ = 4
x₂ = 8
λ = 1/20
Hence, the firm should produce a combination of x₁ = 4 and x₂ = 8 to minimize the cost of C = x₁² + x₂² while satisfying the production quota of 400.
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SOMEONE ANYONE PLEASE HELP!!!
The graph of g(x) is obtained from the graph of f(x) by the following transformations:
- A horizontal stretch by a factor of 9. This is because the graph of g(x) is 9 times wider than the graph of f(x).
- A vertical translation down by 2 units. This is because the graph of g(x) is 2 units lower than the graph of f(x).
In other words, to obtain the graph of g(x) from the graph of f(x), we stretch the graph horizontally by a factor of 9 and then translate it down by 2 units.
Here is a more detailed explanation of the transformations:
- Horizontal stretch by a factor of 9: To stretch the graph horizontally by a factor of 9, we multiply all of the x-coordinates by 9. This means that every point on the graph of f(x) will be moved 9 units to the right on the graph of g(x).
- Vertical translation down by 2 units: To translate the graph down by 2 units, we subtract 2 from all of the y-coordinates. This means that every point on the graph of f(x) will be moved 2 units down on the graph of g(x).
(section 7.3, problem 20) use the open space to show all of your work. this includes: sketching the curves, finding and labeling the points of intersection, setting up the appropriate definite integral(s) and evaluating them. place your numerical answer for the area of the region in the box. leave your answer in exact form
The solution of the expression is x=0 and it is the only solution that is an integer.
An expression in mathematics is a combination of numbers, variables, and mathematical operations that evaluates to a numerical value or an algebraic expression.
To do this, we need to pick a range of x values and substitute them into each equation to find the corresponding y values.
Next, we need to find the points of intersection between the two curves. These are the x values where the two curves cross each other and have the same y value. To find these points, we will set the two equations equal to each other and solve for x:
=> x=5x−x³
Expanding this equation, we get
=> 4x³+x=0.
Factoring this equation, we get
=> x(4x²+1)=0.
This gives us two solutions, x=0 and x=±i√(1/4), where i is the imaginary unit. Since x can only take on real values, x=0 is the only solution that is an integer.
Complete Question:
Use the open space to show all of your work. This includes: sketching the curves, finding and labeling the points of intersection, setting up the appropriate definite integral(s), and evaluating them. Place your numerical answer for the area of the region in the box. Leave your answer in exact form.
y = x,
y = 5x−x³
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Which of the following is equal to
(x²y³)*
(x°y³z)°
✓
1
48 36
(x²y³)
(x°y³z)°
x-12-18
?
Step-by-step explanation:
ATTACHED IS THE SOLUTION!!THE ANSWER IS THE SECOND ONE.
A B D
I did it and this was the correct answers
Please help now i need help pronto!
multiply the numbers
Consider the following Point:(3/8, -1)Line:5x - 3y = 15(Question parts are in photo)(Pre-algebra)
a)
The equation of a line in the slope intercept form is expressed as
y = mx + c
where
m is the slope
c is the y intercept
The given equation of the line is
5x - 3y = 15
3y = 5x - 15
Dividing both sides by 3,
y = 5x/3 - 5
By comparing this equation with the slope intercept equation,
slope, m = 5/3
If two lines are parallel, it means that they have the same slope. This means that the slope of the line passing through the point (3/8, - 1) and parallel to the given line is 5/3
We would find the y intercept of the line by substituting m = 5/3, x = 3/8 and y = - 1 into the slope intercept equation. We have
- 1 = 5/3 * 3/8 + c
- 1 = 5/8 + c
c = - 1 - 5/8 = (- 8 - 5)/8
c = - 13/8
We would substitute m = 5/3 and c = - 13/8 into the slope intercept equation. Thus, the equation of the line is
y = 5x/3 - 13/8
b) If two lines are perpendicular, it means that the slope. This means that the slope of the line passing through the point (3/8, - 1) and perpendicular to the given line is - 3/5
We would find the y intercept of the line by substituting m = - 3/5, x = 3/8 and y = - 1 into the slope intercept equation. We have
- 1 = - 3/5 * 3/8 + c
- 1 = - 9/40 + c
c = - 1 + 9/40 = (- 40 + 9)/40
c = - 31/40
We would substitute m = - 3/5 and c = - 31/40 into the slope intercept equation. The equation of the line is
y = - 3x/5 - 31/40
Solve equation by factoring n^2=5n-4
\(\huge\text{Hey there!}\)
\(\huge\textbf{Equation:}\)
\(\mathsf{n^2 = 5n - 4}\)
\(\huge\textbf{Convert:}\)
\(\mathsf{5n - 4 = n^2}\)
\(\huge\textbf{Subtract }\boxed{\bf n^2}\huge\textbf{ to both sides:}\)
\(\mathsf{5x - 4 - n^2 = n^2 - n^2}\)
\(\huge\textbf{Simplify it:}\)
\(\mathsf{-n^2 + 5x - 4 = 0}\)
\(\huge\textbf{Factor the LEFT side of the equation:}\)
\(\mathsf{(-n + 1)\times (n - 4) = 0}\)
\(\huge\textbf{Simplify that as well:}\)
\(\mathsf{-n + 1 = 0 \ or\ even\ \ n - 4 = 0}\)
\(\huge\textbf{Lastly, simplify that as well:}\)
\(\mathsf{n = 1\ or\ n = 4}\)
\(\huge\textbf{Therefore, your answer should be: }\)
\(\huge\boxed{\frak{n = 1\ or \ n = 4}}}\huge\checkmark\)
\(\huge\text{Good luck on your assignment \& enjoy your day!}\)
~\(\frak{Amphitrite1040:)}\)
What is the area of the rectangle? l = 5 and w = 2 I need the answer to this question!!
Answer:
Area="10"
Step-by-step explanation:
The reason for this is because the fromula for finding an area of a rectangle is LxW or Length mutiplied by with.And in this situation the length is 5 and the with is 2.Mutiply them and you get your answer 5x2="10"
If the point (-5, -4) is reflected across the x-axis, what are the coordinates of the new point?
Answer:
(-5, 4)
Step-by-step explanation:
Recall that in a reflection across the x-axis the x coordinate stays the same, while the y coordinate flips its sign.
Therefore
(-5, -4) converts under reflection into (-5, 4)
The effects of caffeine on the body have been extensively studied. In one experiment1, researchers examined whether caffeine increases the rate at which people are able to tap their fingers. Twenty students were randomly divided into two groups of
Question attached
Answer and explanation:
Here we would use the two sample t test. In finding the hypotheses for a two sample t test we test the sample mean of one group against the other group to determine if there is a statistical difference or they are equal. We have this to compare the mean finger tapping rate of the two groups being tested in the question. Our null and alternative hypotheses here are:
H0: u1 = u2 null hypothesis
H1: u1 > u2 alternative hypothesis
Where u1 and u2 are the sample means for each group in the caffeine experiment
Can anyone help me with this and explain?
Easy problem just look at the photo
Answer:
55
Step-by-step explanation:
a triangle adds up to 180°
25+30+x= 180
55+x=180
x=180-55
x=125
x and y is a straight line so it adds up to 180°
x=125 y=?
x+y=180
125+y=180
y=180-125
y=55°
y= 55°
A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is spun several times, and the results are recorded below:
Spinner Results
Color Frequency
Red 4
Blue 4
Green 15
Yellow 9
Purple 3
Based on these results, express the probability that the next spin will land on blue or green or purple as a percent to the nearest whole number.
Step-by-step explanation:
OUT of 35 spins 4 + 15 + 3 = 22 were blue or green or purple
22/35 probability = 63%
360-[6*6+4(5*2*2*2)-6*2)]
Answer:
169
Step-by-step explanation:
360-[36+160]-36
360-160-72
169
What is the value of x
Answer:
28
Step-by-step explanation:
14x2=28
Therefore x=28
Two chemical plants, one at Macon and one at Jonestown, produce two types of fertilizer, low phosphorus (LP) and high phosphorus (HP). At each plant, the fertilizer is produced in a single production run, so the two types are produced in fixed proportions. The Macon plant produces 1 ton of LP and 3 tons of HP in a single operation, and it charges $600 for what is produced in one operation, whereas one operation of the Jonestown plant produces 1 ton of LP and 1 ton of HP, and it charges $1,000 for what it produces in one operation. If a customer needs at least 100 tons of LP and 180 tons of HP, how many production runs from each plant should be ordered to minimize the cost.
9514 1404 393
Answer:
100 runs from Macon
Step-by-step explanation:
A graph of the requirements shows the feasible region is bounded by a polygon with vertices (Macon, Jonestown) = (0, 180), (40, 60), and (100, 0).
Checking costs of these solutions, we find the lowest cost to be obtained when ...
100 production runs should be ordered from Macon
5(10v-8w+4) as a distributive property
Using distributive property, the solution to the given expression is: 50v - 40w + 20
How to use distributive property?The Distributive Property is a term which is an algebra property which is used to multiply a single term and two or more terms inside a set of parentheses.
For example:
4(3 + 5)
According to the distributive property, you first have to multiply out the bracket to get:
4*3 + 4*5 = 12 + 20
= 32
Thus:
5(10v - 8w + 4) = (5 * 10v) - (5 * 8w) + (5 * 4)
= 50v - 40w + 20
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Rakeem is constructing a triangle. He knows that one side is 32 cm and another is 20 cm
What is the largest size for the last side of the triangle?
b. What is the smallest size for the last side of the triangle?
Answer:38
Step-by-step explanation:
Mr. James is teaching his students about the volume of rectangular prisms. He has various rectangular prisms with a height of 6 inches. The table shows the relationship between the base of the prism and its volume. Which equation can be used to find B, the area of the base with a volume of V?
The proportional relationship used to find B, the area of the base with a volume of V, is given as follows:
B = V/6.
What is a proportional relationship?A proportional relationship is a type of relationship between two quantities in which they maintain a constant ratio to each other.
The equation that defines the proportional relationship is given as follows:
y = kx.
In which k is the constant of proportionality, representing the increase in the output variable y when the constant variable x is increased by one.
From the table given in the image at the end of the answer, we have that the base area is a sixth of the volume, hence the equation is:
B = V/6.
Missing InformationThe table is given by the image presented at the end of the answer.
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Which expression is equivalent to (3+4i)(2−3i)
The expression that is equivalent to the given value would be = 18-i . That is option C.
What is an equivalent expression?An equivalent expression is defined as the type of expression that is similar to a given value when simplified.
The given expression = ( 3 + 4i) ( 2 - 3i)
Expand the given expression by removing the brackets as follows:
= =2(3+4i)−3i(3+4i)
=(6+8i)−(9i−12)
= (6+12)+i(8−9)
=18−i.
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janice is buying paint to paint her new apartment
Answer:
I canot answer this
Step-by-step explanation:
A fair coin is tossed three times in succession. The set of equally likely outcomes is {HHH, HHT, HTH, THH, HTT, THT, TTH, TTT}. Find the probability of getting exactly one tail.
The probability of getting exactly one tail when a fair coin is tossed three times is 3/8.
What is probability?Probability is the measure of the likelihood or chance of an event occurring. It is expressed as a number between 0 and 1, where 0 indicates an impossible event and 1 indicates a certain event.
In the given question,
There are 8 possible outcomes, and we want to find the probability of getting exactly one tail. We can list the outcomes with exactly one tail as HHT, HTH, and THH.
So, the probability of getting exactly one tail is:
P(exactly one tail) = P(HHT) + P(HTH) + P(THH)
We know that each individual toss of a fair coin has a probability of 1/2 of resulting in either heads or tails. Using the multiplication rule of probability, we can find the probabilities of each of these outcomes:
P(HHT) = (1/2) * (1/2) * (1/2) = 1/8
P(HTH) = (1/2) * (1/2) * (1/2) = 1/8
P(THH) = (1/2) * (1/2) * (1/2) = 1/8
So, the probability of getting exactly one tail is:
P(exactly one tail) = P(HHT) + P(HTH) + P(THH) = 1/8 + 1/8 + 1/8 = 3/8
Therefore, the probability of getting exactly one tail when a fair coin is tossed three times is 3/8.
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There was a green house. Inside the green house there was a white house. Inside the white house there was a red house. Inside the red house there were lots of babies. What is it?
Answer:
A watermelon my woman
Step-by-step explanation:
what is the biggest decimal and take away two
Answer:
about -1
Step-by-step explanation:
0.9999999999 minus 2
DO Tuesday Write 1,003,498 in each form. Word: Expanded: need help really please
word form: one million, three thousand, four hundred ninety eight
number form : 1,003,498
expaned form 1000000 + 30000 + 400 + 90 + 8
i would so base form but i cant
A gas station sells 1200 gallons of gasoline per hour if it charges $2.05 per gallon, but
only 900 gallons per hour if it charges $2.45 per gallon. Assuming a linear model...
(a) How many gallons would be sold per hour of the price is $2.20 per gallon?
The quantity of gallons that would be sold per hour when the price is $2.20 per gallon would be = 1288 gallons
How to calculate the quantity of gallons sold per hour?When charges is $2.05 per gallon the number of gallons sold = 1200 gallons
When the charges is $2.45 per gallon the number of gallons sold = 900 gallons per hour.
That is;
$2.05 = 1200 gallons
$2.20 = X gallons
Make X gallons the subject of formula;
X gallons = 2.20×1200/2.05
= 2640/2.05
= 1287.8 gallons
= 1288 gallons ( approximately)
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Please help me!!!!!!
Answer:
The bubble on the left should be 0.01. The bubbles on the right should be: (top to bottom) 7, 0.1, 0.07, 0.004.
Step-by-step explanation:
You're just supposed to break the decimal into parts. It like breaking 178 into hundreds, tens, and ones (100 + 70 + 8)
The manager of a department store chain wishes to make four digit identification cards for her employees. How many different cards can be made if she uses the digits 1,2,3,4,5,6 and repetitions are permitted
a Answer:
\(1296\)Explanation:
Here, we want to know the number of different cards that can be made
From the question, she wants to make four-digit identification card
For the first digit, there are 6 choices, so also for the second to the fourth digit. This is because repetition is allowed
Thus, the total number of different cards possible will be:
\(6\times6\times6\times6\text{ = 1,296}\)