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Marina86 [1]
2 years ago
14

Help please , will mark

Mathematics
1 answer:
Andrews [41]2 years ago
7 0

Answer:

384 in²

Step-by-step explanation:

SA = 2(8²) +  2(8²) + 2(8²) = 384

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Please help me answer this question.
Alex787 [66]
1. Change x = 4t into x = 3t

4t\cdot\frac{3}{4}=3t so

y=(\frac{3}{4}t)^2-1=\frac{9}{16}t^2-1

Answer A and D are wrong.

2. Change x = 4t into x = 2t

4t\cdot\frac{1}{2}=2t and

y=(\frac{1}{2}t)^2-1=\frac{t^2}{4}-1

Answer b is correct.

3.  Change x = 4t into x = 8t

4t\cdot2=8t and

y=(2t)^2-1=4t^2-1

Answer C. is correct, E. is wrong.

7 0
3 years ago
(-4,9), (-4 -3), and (-1, 9) what is the area?
Gnesinka [82]
The area of it is 18
5 0
3 years ago
A rectangular garden has a perimeter of 172 feet. The length of the garden is 24 feet more than the width. What are the dimensio
Lilit [14]
Given width is 24 less than length.
W=L-24
Perimeter = 2(W+L)=2(L-24+L)=4L-48 
But we're also given perimeter = 172'
Therefore 4L-48=172
solve for L
4L=172+48=220
L=55'
W=55-24 =  31'
Check: Perimeter = 2(W+L)=2(31+55)=2*86=172'  good!

Answer: The dimensions of the garden are 31' * 55'
6 0
3 years ago
Simplify 2m - [n - (m - 2n)]. -3m - n 3m - n -3m - 3n 3m - 3n
zhenek [66]

Answer:

3m-3n

Step-by-step explanation:

We want to simplify the expression;

2m - [n - (m - 2n)].

We expand the parenthesis to obtain;

2m - (n - m + 2n)

2m - ( - m + 3n)

Expand further to get;

2m +m -3n

Combine the first two terms;

3m-3n

4 0
3 years ago
Read 2 more answers
Jernel has to figure out the area of her
Zielflug [23.3K]

<em>Answer:</em>

<em>The answer for this question will be 324 square roots</em>

<em>Step-by-step explanation:</em>

<em>The length and width of a rectangle are interchangeable, however we usually use the longer side for the length. </em>

<em>If that's the case, </em><em>then the square is 18 x 18 = 324 square units. </em>

<em>On the other hand, the square could also be 10 x 10  square units. You choose ! In reality, the length and width, like I said, are interchangeable.</em>

5 0
3 years ago
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