middle school level math!
easy easy!
please help!

Answer:

26.

Step-by-step explanation:

As the 2 y coordinates are the same the distance is

8 - (-18)

= 8 + 18

=26.

Answer: 75%

Step-by-step explanation:

common sense

Answer: 4 committees

Hope this helps! :)

I need brainliest please.

In order to be within a 1% margin of error at a 95% confidence level, the candidate would need to survey 9604 people in the community. The size of the sample is 9604.

We have a political candidate who wants a 1% margin of error at a 95% confidence level. To find the size of the sample, we use the formula given below;

n = [ Z (α/2) / E ]²

Where,

n = the sample size required

Z (α/2) = the value obtained from the standard normal distribution for the given level of confidence

E = the margin of error

Here, α = 1 - 0.95 = 0.05

Z (α/2) = Z (0.025), is the z-value corresponding to 0.025 in the normal distribution table. It is found to be 1.96.

Now, substituting the given values in the formula,

n = (1.96² * 0.5 * 0.5) / 0.01² ⇒ 9604

Hence, the sample size required for the poll is 9604.

However, this is not feasible, as it would be very expensive and time-consuming. Therefore, we will round the answer to the nearest whole number as we are looking for a practical solution. Thus, the candidate would need to survey 9604 people in the community (rounded to the nearest whole number).

To know more about the "confidence level": https://brainly.com/question/15712887

#SPJ11

Answer:

The answer is A

Step-by-step explanation:

B was the closest but it's A

Answer:

i think its 3

Step-by-step explanation:

21/7=3

The second figure OA' divided by first figure OA = 21/7=3

Answer:

22

Step-by-step explanation:

if a=15

then, 2(a-5)+2= 2(15-5)+2 = 2(10)+2= 20+2=22

h(x) is wider than f(x) and translated 1 unit up.

g(x) is narrower than f(x) and translated 3 units down.

It is the movement of the shape in the left, right, up, and down directions.

The translated shape will have the same shape and shape.

There is a positive value when translated to the right and up.

There is a negative value when translated to the left and down.

We have,

a)

f(x) = x²

h(x) = 3x² + 1

This means,

f(x) is dilated with a scale factor of 3 and translated one unit up.

So,

h(x) will be wider than f(x).

b)

f(x) = x²

g(x) = (1/2)x²  - 3

This means,

f(x) is dilated with a scale factor of 1/2 and translated to 3 units down.

So,

g(x) will be narrower than f(x).

Thus,

h(x) is wider than f(x) and translated 1 unit up.

g(x) is narrower than f(x) and translated 3 units down.

Learn more about translation here:

https://brainly.com/question/12463306

#SPJ1

Answer:

A

Step-by-step explanation:

y=−2x+2

Answer:

y=3/1x+7

Step-by-step explanation:

Hope this helps

EXPLANATION:

The steps to follow to evaluate an expression are the following:

-We must first replace the values ​​in the corresponding assigned variable.

-Then we must begin to perform the operations of higher degree in this case, first solve the fraction, as well as double the 4.

The exercise is as follows:

Answer:

Step-by-step explanation:

$y = -16x^2 + 240x + 115$

$= -16x^2 + 240x + 120 - 5$

$= -16x^2 + 240x + 120 - 5x - 5x$

$= -16x^2 + 240x + 120 - 10x - 5x$

$= -16x^2 + 240x + 120 - 10x - 5x + x^2 - x^2$

$= -16x^2 + 240x + 120 - 10x - 5x + x^2 - x^2 + 2x - 2x$

$= -16x^2 + 240x + 120 - 10x - 5x + x^2 - x^2 + 2x - 2x + x -x$

$= -16x^2 + 240x + 120 - 10x - 5x + x^2 - x^2 + 2x - 2x + x -x + 3 - 3$

$= -16x^2 + 240x + 120 - 10x - 5x + x^2 - x^2 + 2x - 2x + x -x + 0

A 95% confidence interval to estimate the population proportion of retired baseball players who used steroids is: (1.9216, 0.2784)

The formula for confidence interval for proportion is:

CI = p ± z√(p(1 - p)/n)

where:

p is sample proportion

n is sample size

z is z-score at confidence level

n = 100

p = 20/100 = 0.2

z-score at 95% CL = 1.96

Thus:

CI = 0.2 ± 1.96√(0.2(1 - 0.2)/100)

CI = 0.2 ± 0.0784

CI = (1.9216, 0.2784)

Read more about Confidence Interval at: https://brainly.com/question/17097944

#SPJ1

Answer:

x = 50° and y = 80°

Step-by-step explanation:

x + 130° = 180° { being linear pair }

x = 180° - 130°

x = 50°

And we can see in the triangle two sides are equal so it is an isosceles triangle so the base angles are also equal.

Then

y + 50° + 50° = 180° { being sum of angles of triangle }

y + 100° = 180°

y = 180° - 100°

y = 80°

Hope it will help :)❤

Answer:

I know this aint no clever bro cmon that stuff is easy

Step-by-step explanation:

The dimensions of the box that will have the greatest volume are:

Length and width of the base: 2√3 feet

Height: h = (36 - x^2) / 8x = (√3)/2 feet

Let the length and width of the base be x, and let the height be h.

The surface area of the top is x^2, and the surface area of the remaining four sides is \(2(xh + xh) = 4xh\).

The cost of the top is \(x^2\), and the cost of the remaining four sides is \(2(4xh) = 8xh\). Therefore, the total cost is:

\(C(x,h) = x^2 + 8xh\)

We know that the total cost is $36, so we have:

\(x^2 + 8xh = 36\)

Solving for h, we get:

\(h = (36 - x^2) / 8x\)

The volume of the box is given by:

\(V(x,h) = x^2h\)

Substituting h in terms of x, we get:

\(V(x) = x^2 ((36 - x^2) / 8x)\)

Simplifying, we get:

\(V(x) = (1/8) x (36x - x^3)\)

To find the dimensions of the box that will have the greatest volume, we need to find the value of x that maximizes V(x). We can do this by taking the derivative of V(x) with respect to x, setting it equal to 0, and solving for x:

\(V'(x) = (1/8) (36 - 3x^2) = 0\)

Solving for x, we get:

x = 2√3

Therefore, the dimensions of the box that will have the greatest volume are:

Length and width of the base: 2√3 feet

Height: \(h = (36 - x^2) / 8x\) = (√3)/2 feet

The volume of the box is:

\(V = x^2h\)= (2√3)^2 ((√3)/2) = 9√3 cubic feet

Note: To confirm that this value represents the maximum volume, we can check that V''(x) < 0, which indicates a maximum point. We have:

\(V''(x) = (1/8) (-6x) = -3x/4\)

At x = 2√3, V''(x) = -3(2√3)/4 = -3√3/2 < 0, so this is indeed a maximum point.

To know more about dimensions refer here:

https://brainly.com/question/29581656

#SPJ11

The value for angle 2 = 4x-4 and ∠4 = x+50 is 68°.

It is important to note that vertical angles are equal.

It was stated that ∠2 = 4x-4 and ∠4 = x+50 are vertical angles. This will be represented as:

4x - 4 = x + 50

Collect like terms

4x - x = 50 + 4

3x = 54

Divide

x = 54 / 3

x = 18

Therefore, the angle will be:

= x + 50

= 18 + 50

= 68°

The complete details is written below.

Learn more about angles on:

brainly.com/question/25716982

#SPJ1

∠2 = 4x-4 and ∠4 = x+50 are vertical angles. Find the value of the angle.

Answer:

d po

Step-by-step explanation:

i hope its help

carry on learning

The probability that fewer than 3 women will deliver prematurely is 1/20.

So, 10% of 20:

Therefore, the probability that fewer than 3 women will deliver prematurely is 1/20.

Know more about probability here:

https://brainly.com/question/24756209

#SPJ9

The correct question is given below:

A large national study finds that 10% of pregnant women deliver prematurely. a local obstetrician is seeing 20 pregnant women in the next week at their clinic. what is the probability that fewer than 3 of them will deliver prematurely?

The equation of the sphere is (x + 4)² + (y - 1)² + (z - 1)² = 64/3. The center of the sphere is (-4, 1, 1) and the radius is √(64/3) = 4√(3/3) = 4.

Let's denote the center of the sphere as C(x, y, z) and the radius as r. We need to find the values of x, y, z, and r that satisfy the given condition.

The distance between a point P(x, y, z) and another point Q(x₁, y₁, z₁) can be calculated using the distance formula: d(PQ) = √[(x - x₁)² + (y - y₁)² + (z - z₁)²].

According to the given condition, the distance from P to A is twice the distance from P to B. Mathematically, this can be expressed as:

√[(x + 2)² + (y - 5)² + (z - 2)²] = 2√[(x - 6)² + (y - 3)² + (z + 3)²].

To simplify the equation, we square both sides:

(x + 2)² + (y - 5)² + (z - 2)² = 4[(x - 6)² + (y - 3)² + (z + 3)²].

Expanding and simplifying the equation yields:

x² + 4x + 4 + y² - 10y + 25 + z² - 4z + 4 = 4x² - 48x + 144 + 4y² - 24y + 36 + 4z² + 24z + 36.

Rearranging the terms and combining like terms:

3x² + 14x + 3y² - 34y + 3z² - 28z + 29 = 0.

Comparing this equation with the standard form of the sphere equation, (x - h)² + (y - k)² + (z - l)² = r², we can identify that the center of the sphere is C(-4, 1, 1) and the radius is r = √(29/3) = 4√(3/3) = 4.

learn more about sphere here

https://brainly.com/question/11374994

#SPJ11

The complete question is

What is the equation of the sphere with points P, such that the distance from P to point A(-2, 5, 2) is twice the distance from P to point B(6, 3, -3)? Also, determine the center of the sphere in the form (x, y, z) and the radius of the sphere.

Given the function:

Let's find the limit of the function as x approaches infinity and also as x approaches negative infinity.

We have:

The limit at infinity of a polynomial whose leading coefficient is negative is negative infinity.

• Also, the limit of the function at negative infinity:

The limit at negtaive infinity of a polynomial whose leading coefficient is negative is infinity.

ANSWER:

Therefore, The grading function is not a one-to-one correspondence since two numerical ranges, [70, 73) and [67, 70), have the same grade assigned to them.

Explanation:
A one-to-one correspondence means that each input has a unique output and vice versa. In this case, the grading function assigns a grade to a numerical range.
To determine if it is a one-to-one correspondence, we need to check if any two numerical ranges have the same grade assigned to them.
Looking at the given ranges, we can see that there is an overlap between [70, 73) and [67, 70) since they share the grade. Therefore, this grading function is not a one-to-one correspondence.

Therefore, The grading function is not a one-to-one correspondence since two numerical ranges, [70, 73) and [67, 70), have the same grade assigned to them.

To learn more about the linear function visit:

brainly.com/question/29612131

#SPJ11

The five-number summary includes the minimum value, lower quartile (Q1), median, upper quartile (Q3), and maximum value. The interquartile range (IQR) is calculated as the difference between the third and first quartiles: IQR = Q3 - Q1.

A box plot is a graphical representation of numerical data that displays the five-number summary of a dataset, which includes the minimum and maximum values, the lower and upper quartiles, and the median. The box portion of the plot represents the middle 50% of the data, with the lower and upper edges of the box representing the first and third quartiles, respectively. The distance between the first and third quartiles is known as the interquartile range (IQR), which is a measure of the spread of the middle 50% of the data. The box plot is useful for identifying outliers and visualizing the overall distribution of the data.

Learn more about descriptive statistics here: brainly.com/question/29487303

#SPJ4

Complete question:

Box Plot laximum value A box plot is a representation of data in which we divide the data into 4 quarters. The five key features (fivenumber summary ) are the minimum, lower quartile, median, upper quartile and the maximum. The interquartile range (IQR ) is found by Q⁽³⁾ - Q⁽¹⁾.+

The length of QS is obtained as follows:

QS = 28.

The length of QS is obtained applying the proportions in the context of the problem.

The ratio of the side lengths is given as follows:

PQ : QR : RS = 3 : 3 : 1.

The ratio of the side lengths can be simplified as follows:

PQ : QS = 3:4.

Which means that QS is equals to 4/(4 + 3) = 4/7 of the length of segment PS.

The segment PS has a length of 49 units, hence the length of segment PS is given as follows:

PS = 4/7 x 49

PS = 28 units.

More can be learned about proportions at https://brainly.com/question/24372153

#SPJ1

Answer:

h/2

Step-by-step explanation:

Answer:

Plot point -6 and 2 and just keep making the line straight off the graph  I think this should help

Step-by-step explanation:

Answer:

$1,495,000

Step-by-step explanation:

From the above, we can infer that the first two costs for equipment and software are fixed cost, while wages is the cost that is influenced by the number of months (m).

The above implies that we would multiply number of months 'm' with $40,000.

= 840,000 + 15,000 + 40,000m

Where month (m) = 16

= 840,000 + 15,000 + 40,000(16)

= 840,000 + 15,000 + 640,000

= $1,495,000

Therefore, the total cost is $1,495,000

Answer:

y=7

Step-by-step explanation:

you would divide each term by 8 to get y=7 (8/8 and 66/8) :) hope this helps!!