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elena-s [515]
3 years ago
15

This image shows a square pyramid.

Mathematics
2 answers:
AURORKA [14]3 years ago
5 0

Answer:

128

Step-by-step explanation:

I just took the test and I can confirm that this answer is correct! :D

Lynna [10]3 years ago
3 0
We know that

[Surface area ]=[the area of  4 triangles]+[the area of square base]
[the area of square base]=8*8--------> 64 ft²

[the area of 1 triangle]=(1/2)*b*h
b=8 ft
How the angle is 45°------->  h=b/2-------> h=4 ft
then
[the area of 1 triangle]=(1/2)*8*4------> 16 ft²
and 
[the area of 4 triangles]=4*16--------> 64 ft²

[Surface area ]=[64 ft²]+[64 ft²]----------> 128 ft²

the answer is 128 ft²
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Factorise x^2+6x-7 ?? Help please
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x^2+6x-7=\\
x^2-x+7x-7=\\
x(x-1)+7(x-1)=\\
(x+7)(x-1)
7 0
3 years ago
(a+b)^2 hihhhhhhhhhhhhhhhhhhhh
OverLord2011 [107]

Answer:

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Answered by Gauthmath

3 0
3 years ago
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Joshua walked 14 feet down the hall of his house to get the door he continued in a straight line out the door and across the yar
AleksandrR [38]

Answer:

Joshua walked 48 feet in total.

Step-by-step explanation:

To find the total distance we need to sum every distance that he walked. We have:

- First: Joshua walked down the hall to the door = 14 feet

- Second: He continued in a straight line out the door and across the yard to the mailbox = 24 feet

- Third: He came straight back across the yard and stopped to pet his dog = 10 feet

Hence, the total distance is:

d_{T} = d_{1} + d_{2} + d_{3} = 14 ft + 24 ft + 10 ft = 48 ft

Therefore, Joshua walked 48 feet in total.

I hope it helps you!

8 0
3 years ago
1/2(2g-3)=-4(g+1) show work
xz_007 [3.2K]
<span><span><span>1/2</span><span>(<span><span>2g</span>−3</span>)</span></span>=<span>−<span>4<span>(<span>g+1</span>)</span></span></span></span>
<span><span><span>1/2</span><span>(<span><span>2g</span>−3</span>)</span></span>=<span>−<span>4<span>(<span>g+1</span>)</span></span></span></span>
<span><span>g+<span><span>−3/</span>2</span></span>=<span><span>−<span>4g</span></span>−4</span></span>
<span><span><span>g+<span><span>−3/</span>2</span></span>+<span>4g</span></span>=<span><span><span>−<span>4g</span></span>−4</span>+<span>4g</span></span></span><span><span><span>5g</span>+<span><span>−3</span>2</span></span>=<span>−4</span></span>
5g+−3/2+3/2=−4+3/2
<span><span>
5g</span>=<span><span>−5/</span>2</span></span>
<span><span><span>5g/</span>5</span>=<span><span><span>−5</span>2</span>5</span></span><span>
g=<span><span>−1</span><span>2

Hoped I helped!</span></span></span>
5 0
3 years ago
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GarryVolchara [31]

Answer: h=6

Step-by-step explanation: all you have to do is divide 54 by 9 and you get your answer. But make sure you put h first

6 0
3 years ago
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