Please help!

Which line would be perpendicular?

I don't know sorry I will try and come back If I get it :D

A 95% confidence interval for the average is 4100

The confidence interval formula is used in statistics for describing the amount of uncertainty associated with a sample estimate of a population parameter. It is used to describe the uncertainty associated with a sampling method.

Formula of confidence interval:

If n ≥ 30,

Confidence Interval = m ± [tex]z(\frac{SD}{\sqrt{n} } )[/tex]

where,

n = Number of terms

m = Sample average

SD = Standard Deviation

z = Value corresponding to confidence interval in z table

Table of Confidence interval  and Z

CI      z

0.70 1.04

0.75 1.15

0.80 1.28

0.85 1.44

0.90  1.645

0.92 1.75

0.95 1.96

0.96 2.05

0.98 2.33

0.99 2.58

According to the question

random sample of student (n) =  96

average savings = 4000 dollars

Standard deviation =  500 dollars

95% confidence interval for the average needed

i.e , z = 1.96

Now, By using Formula of confidence interval:

Confidence Interval = m ± [tex]z(\frac{SD}{\sqrt{n} } )[/tex]

substituting the values

Confidence Interval = 4000 ± [tex]1.96(\frac{500}{\sqrt{96} } )[/tex]

                                  = 4000 ± 100.021

                                  = 4100.21

values to the nearest whole number

Confidence Interval = 4100

Hence,  A 95% confidence interval for the average is 4100 .

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Answer:

Rational

Step-by-step explanation:

First tip with numbers... All whole numbers are rational and all numbers, rational or irrational are real numbers. Rational numbers consist of whole numbers, integers, fractions, and so on... While irrational numbers are numbers that can't be simplified to a basic whole number or fraction like 36.

Pi (π) is an example of an irrational number.

36 is an example of a rational number.

Hope you get it now! :)

Answer and Step-by-step explanation:

You got the triangle at front, half of 6 is 3, so then you do 4 times 3 divided by 2, which is 6.

There are 4 of those triangles, so 4 times 6 is 24.

Now, we got two rectangles on top. 5 times 12 is 60, and 60 + 60 is 120.

the bottom rectangle is 6 times 12, which is 72.

Now we add.

24 + 120 + 72 is 216

216 [tex]in^2[/tex] is the answer.

#teamtrees #PAW (Plant And Water)

Answer:

The new value of the house after the 16% decrease would be $199,920.

Step-by-step explanation:

Given that a house was valued at $ 238,000, and over several years, the value decreased by 16%, giving the house a new value, to determine the new value the following calculation must be performed:

238,000 - (238,000 x 0.16) = X

238,000 - 38,080 = X

199.920 = X

Thus, the new value of the house after the 16% decrease would be $ 199,920.

The interquartile range of the data-set is of 5.5, which means that the middle 50% kindergarten classes has a number of students that differ by at most 5.5.

For this problem, the ordered data-set is given by:

18, 18, 18, 20, 21, 22, 23, 23, 24, 24.

There are 10 elements, hence:

Then the IQR is:

Q3 - Q1 = 23.5 - 18 = 5.5.

The IQR is of 5.5, which means that the middle 50% kindergarten classes has a number of students that differ by at most 5.5.

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Answer:

Step-by-step explanation:

4 is coefficient

x is variable

12 is constant

Answer:

The long of snow play ski park is 12 hours

Step-by-step explanation:

because

[tex]60 \div 5 = 12 \\ \\ so \: its \: \the \: answer \: is \: \: 12hour[/tex]

Answer:

cant help im sorry

Step-by-step explanation:

Answer:ok i don't know but you can copy and paste the question then search it in the search bar because i can guaranty that someone has asked that question before. and then all you got to do that and you can keep your points. hope this helps! ;)

Step-by-step explanation: Plz give brainliest.

Answer:

1/2BH

Step-by-step explanation:

I'm not sure but I would think this is the common formula

Answer:

441 if it's not right then I'm sorry I tried

Answer:

[tex]f(x) = x + 4[/tex]

[tex]g(x) = 3x^2 - 5[/tex]

Step-by-step explanation:

Given

[tex]g(f(x)) = 3(x + 4)^2 - 5[/tex]

Required

Find g(x) and f(x)

Replace all expression in bracket with x

[tex]g(x) = 3(x)^2 - 5[/tex]

[tex]g(x) = 3x^2 - 5[/tex]

The expression removed from bracket are:

f(x) and x + 4

So:

[tex]f(x) = x + 4[/tex]

Answer:

x(x - 1 ) = 0

Step-by-step explanation:

x^2 - x + 3 = 3

subtract 3 from each side:

x^2 - x = 0

x(x - 1 ) = 0

1000 Centimeters = 10 Meters

∝ Sidhdi

Answer:

y = 6/5x - 24/5

Step-by-step explanation:

The two points we are given are (4, 0) and (9, 6). First, find the slope.

m = 6 - 0/9 - 4 = 6/5

Next, insert the values into the point-slope form formula. I'll use (4, 0) as the coordinates.

y - 0 = 6/5(x - 4)

y = 6/5x - 24/5

Answer:

SAS

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The inequality is

3x-5y>=10

You can substitute each of the choices in the inequality (on the left side) to see if the result is >=10.

A:  3(1)-5(4)=3-20=-17   not good.

B: 3(6)-5(-3)=18+15=33   good

Answer:

scalene and acute

Step-by-step explanation:

it doesn't have a right angle or 2 sides that r the same

all angles are below 90 so acute

Answer:

f= [tex]\frac{288}{5}[/tex]

Step-by-step explanation:

Answer:

Let's solve for c.

f =

  [tex]\frac{9}{5} c[/tex]

-------------

  32

Flip the equation.

[tex]\frac{9}{160} c[/tex] = f

Divide both sides by 9/160.

c = [tex]\frac{160f}{9}[/tex]

answer: c = [tex]\frac{160f}{9}[/tex]

Step-by-step explanation:

Answer:

help with what??

Step-by-step explanation:

Answer:

change in X is 12

Step-by-step explanation:

The new value of the x is 15 and it went from 3, so the change is 12

Answer:

exact form: 73/21

decimal form: 3.476190

mixed number: 3 10/21

Answer:

Step-by-step explanation:

3 x (5+4) = 27

Hope that helps!

The another way to write 3 x (4+5) = 27, is 3 x (5+4) = 27.

In mathematics, multiplication is a method of finding the product of two or more numbers. It is one of the basic arithmetic operations, that we use in everyday life.

here, we have,

3 x (4+5) = 27

i.e. 3 x (5+4) = 27

Hence, The another way to write 3 x (4+5) = 27, is 3 x (5+4) = 27.

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9514 1404 393

Answer:

  11 cm by 33 cm

Step-by-step explanation:

You can solve this problem mentally as follows.

Consider the rectangle as 3 squares, side-by-side. Then the area of each of those squares is 363/3 = 121 cm^2. From your knowledge of the squares of numbers, you know that 121 = 11^2. So, the width of the rectangle is 11 cm, and the length is 3 times that, or 33 cm.

_____

Using variables, we can let w represent the width. Then 3w can represent the length, and the area is ...

  A = LW

  A = (3w)(w) = 3x^2 = 363

  w^2 = 363/3 = 121

  w = √121 = 11

  3w = 3·11 = 33

The width is 11 cm; the length is 33 cm.

Answer:

Shorter side: 11 cm

Longer side: 33 cm

First, write down what you know:

length=3*width, this can be written as 3w

area=363 sq cm

Now we know the formula for the area of a rectangle= length * width so we can substitute what we know into the formula. It looks like this:

        363 (area) = 3w (length) × w (width)

        [tex]363=w^2[/tex]

  divide both sides by 3 to get: 121 = [tex]w^2[/tex]

   take the square root of both sides to get: w=11 (square root of 121 is 11)

Now that we know what the width is, we can substitute that and find the length: 3w = 3 × 11=33

So length (longer side) is 33cm and width (shorter side) is 11cm.

*To check this, plug the numbers into the area formula: Area=33 × 11 = 363 sq cm.

Answer: I believe it’s lump sum $91,772.64

Step-by-step explanation:

I’ll correct myself if wrong