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3 years ago

Describe how the formula to find perimeter of a rectangle is an application of the Distributive property

1 answer:

8 0

When you are looking for the perimeter of the rectangle, you just add all of them up to get the answer, but when you are using distributive property it can help you understand that this number amount of times. For example, the perimeter of 5, 10, it =15, but when you use distributive property, 2(5+10), that equals 30.

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Solve. x __ 2 = 7 ---------------------------------------- PLEASE HELP!

galina1969 [7]

$\frac{x}{2} = 7\\\\\frac{x}{2} \times 2 = 7\times2\\\\\boxed{x=14}$

5 0

3 years ago

Complete the table to describe the model. The model will have a verbal description, a division expression, and a fraction.

NARA [144]

Answer:

what I dont even know whT your talking about. could you please explain your question a bit more?? then maybe I could help you out

5 0

3 years ago

A University wanted to find out the percentage of students who felt comfortable reporting cheating by their fellow students. A s

Alla [95]

Answer:

The point estimate for this problem is 0.48.

Step-by-step explanation:

We are given that a University wanted to find out the percentage of students who felt comfortable reporting cheating by their fellow students.

A survey of 2,800 students was conducted and the students were asked if they felt comfortable reporting cheating by their fellow students. The results were 1,344 answered "Yes" and 1,456 answered "no".

Let $\hat p$ = proportion of students who felt comfortable reporting cheating by their fellow students

Now, point estimate ( $\hat p$ ) is calculated as;

$\hat p=\frac{X}{n}$

where, X = number of students who answered yes = 1,344

n = number of students surveyed = 2,800

So, Point estimate ( $\hat p$ ) = $\frac{1,344}{2,800}$

= 0.48 or 48%

5 0

4 years ago

What is the sum of the complex numbers 3 − 4i and 5 + 3i ?

Mandarinka [93]

Answer:

8 - i

General Formulas and Concepts:

Algebra I

Combining Like Terms

Algebra II

Standard Form: a + bi

Step-by-step explanation:

Step 1: Define

(3 - 4i) + (5 + 3i)

Step 2: Simplify

Combine like terms (Z): 8 - 4i + 3i
Combine like terms (i): 8 - i

7 0

3 years ago

23, 24 And 25 please. Thank you!

Vesna [10]

Step-by-step explanation:

23. area of rect,r = 11 x 3.5 = 38.5cmsq

area of tri, t = 6 x3.5/2 = 10.5 cmsq

area of shaded region, sr = r-t

=> sr = 38.5- 10.5 = 28.5cmsq

24. area of square, s = 10x10 = 100mmsq

area of circle, c = pi x 5^2 = 78.5mmsq

area of shaded region, sr = s - c

=> sr = 100- 78.5 = 22.5mmsq

25. area of circle, c = pi x 6^2 = 113.04insq

area of tri, t = 6x12/2 = 36insq

area of shaded region, sr = c - t

=> sr = 113.04 - 36 = 77.04insq

3 0

3 years ago