PLEASE PLEASE PLEASE HURRY!Which is the best strategy to use to solve this problem?

Mr. Jackson wants to build a pool in his backyard. He plans to put a safety fence around the rectangular pool area that has an area of 400 square feet. He wants to use as little fence material as possible.

What are the dimensions Mr. Jackson should use for his rectangular pool area?

A.
Make a list.

Create a list of all possible whole-number combinations of length and width that would equal an area of 400 square feet. Then start calculating the perimeter of each rectangle. Look for a pattern to decrease the number of calculations you have to make.

B.
Write a number sentence.

Use a number sentence to calculate the area of a rectangle. Use guess and check to find two numbers that when multiplied will give a product of 400.

C.
Use objects.

Arrange 400 square tiles in different patterns until you get a rectangular shape. Count the number of tiles on the perimeter of the shape.

Answers

Answer 1

Answer: I believe it might be A or C. Not really sure

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A small auditorium has 10 rows of seats. There are 12 seats in the row and 16 seats in the second row the number of seats in a row continues to increase by 4 with each additional row. What is the total number of seats in the auditorium?

Answers

This problem can be solved through simple arithmetic progression

Let

a1 = the first term of the sequence

a(n) = the nth term of the sequence

n = number of terms

d = common difference

Sn = sum of all terms

given

a1 = 12

a2 = 16

n = 10

d = 16 -12 = 4

@n = 10

a(n) = a1 + (n-1)d

a(10) = 12 + (9)4

a(10) = 48 seats

Sn = (n/2) * (a1 + a(10))

Sn = 5* (12 + 48)

Sn = 300 seats

Therefore the total number of seats is 300.

Need help ASAP will give brainly if correct

Answers

I’m pretty sure that it’s C

Answer:

C is not a function because the x value 2 corresponds to two numbers

Step-by-step explanation:

Please Brainliest!!!!

Find the distance between two parallel lines: x = 11 and x = 5.

Answers

$x = 11 ,\ \ \ A(11,0) \n \n x = 5 , \ \ \ B(5,0) \n \n distance \ between \ two \ parallel \ lines \ : \n \n d=\sqrt{(x_(2)-x_(1))^2 + (y_(2)-y_(1))^2}\n \nd=√((5-11)^2+(0-0)^2)=√((-6)^2)=√(36)=6$

$The\ distance:\n\nd=|11-5|=|6|=6$

Can two fractions with the same numerator and different denominators be equal? Can the opposite be true?

Answers

Ye they can be equal

Find the product.
(n + 8)(n - 2)

Answers

(n)(n)=n^2
8n-2n=6n
(8)(-2)=-16
Solution:
n^2+6n-16

n^2-n*2+8n-16

n^2-2n+8n-16

=n^2+6n-16

What is the factor of 16^2-81

Answers

this is the diffiarence of two perfect squares. this should be memorised, but if not here it is

a^2-b^2=(a-b)(a+b)
so 16^2-81=16^2-9^2
so the answer is (16-9)(16+9)

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