Answer:
A ≈ 494.80 
V = 827.02 
Step-by-step explanation:
height ( <em>h </em>) = 13 mm
radius ( <em>r </em>) = 
= 4.5 mm
Surface area = 
= 2π(4.5)(13) + 2π(4.5)
≈ 494.80
Volume = 
<em> </em>= 
= 827.02
Answer:
3
Step-by-step explanation:
2(7y−1)=40
14y-2=40
14y=40+2
14y=42
y=3
please mark as brainliest
<h3>
Answer: a = 100</h3>
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Explanation:
There are n = 7 sides to this polygon (so it's a heptagon)
The interior angles add up to 180(n-2) = 180*(7-2) = 900 degrees.
So that means,
69+284+62+62+242+81+a = 900
800+a = 900
a = 900-800
a = 100
Subtract it and you will find your answer hope this helps
Answer:
D.
Step-by-step explanation:
So find what two numbers multiply to 72 and add up to 17
9 and 8
(z + 9)(z + 8)
