All categories

3 years ago

I need help please.

Mathematics

2 answers:

LiRa [457]3 years ago

7 0

Answer:

Step-by-step explanation:

The greatest common factor of 30 and 40 is 10. To find the greatest common factor, start by identifying all the factors for each of the numbers.

ozzi3 years ago

7 0

Answer:

Step-by-step explanation:

You might be interested in

Exhibit 13-3 To test whether or not there is a difference between treatments A, B, and C, a sample of 12 observations has been r

marta [7]

Answer:

a. 1.059

Step-by-step explanation:

Test statistics is used in hypothesis testing to find the conclusion. Test statistics are T-values which are used in testing a hypothesis and deciding whether to accept or reject the null hypothesis.

Test statistics can be calculated with the following formula:

Z = x - u / s / $\sqrt{n}$

7 0

3 years ago

Find the Area of the Garden (Must show work!!!)

sesenic [268]

Answer:

162 ft²

Step-by-step explanation:

<u>The missing side of the garden is the hypotenuse of a triangle with legs:</u>

(80 - 70) = 10 ft and (40 - 15) = 25 ft

<u>The length of the side is:</u>

$\sqrt{10^2+ 25^2} = \sqrt{725}$ ≈ 27 ft

<u>The area of the garden is:</u>

A = 27*6 = 162 ft²

7 0

3 years ago

Which expression can be simplified to find the slope of the trend line in the scatterplot? On a graph, a line goes through point

Igoryamba

Your answer is StartFraction 35 minus 21 Over 8 minus 4 EndFraction → 35–21/8–4

6 0

3 years ago

Read 2 more answers

How to solve an exponential equation with unlike bases

Dmitriy789 [7]

Answer:

Step-by-step explanation:

Solving Exponential Equations with Different Bases.

Step 1: Determine if the numbers can be written using the same base. If so, stop and use Steps for

Solving an Exponential Equation with the Same Base. If not, go to Step 2.

Step 2: Take the common logarithm or natural logarithm of each side.

Step 3: Use the properties of logarithms to rewrite the problem. Specifically, use Property 5 which

says

Step 4: Divide each side by the logarithm.

Step 5: Use a calculator to find the decimal approximation of the logarithms.

Step 6: Finish solving the problem by isolating the variable.

3 0

3 years ago

A large rectangular movie screen in an IMAX theater has an area of 8,364 square feet. Find the dimensions of the screen if it is

jeyben [28]

Answer:

The dimensions of the screen are

Length:102 feet

Width: 82 feet

Step-by-step explanation:

we know that

The area of the rectangle (movie screen) is equal to

$A=LW$

where

L is the length

W is the width

we have

$A=8,364\ ft^2$

$8,364=LW$ ----> equation A

The screen is 20 feet longer than it is wide.

$L=W+20$ ---> equation B

substitute equation B in equation A

$8,364=(W+20)W$

solve for W

$8,364=W^2+20W\\W^2+20W-8,364=0$

solve the quadratic equation by graphing

the solution is W=82 ft

see the attached figure

Find the value of L

$L=82+20=102\ ft$

therefore

The dimensions of the screen are

Length:102 feet

Width: 82 feet

7 0

4 years ago

I need help please. ​

I need help please.