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Y_Kistochka [10]
3 years ago
7

What is the surface area of a pyramid with a base of 16 and a height of 20

Mathematics
1 answer:
Lemur [1.5K]3 years ago
8 0

Answer: 256 feet

Step-by-step explanation:

Base Surface Area =  162

=  256 feet2

Lateral Surface Area =  

2×16× √

( 16 )2 + 202

2

=  689.30109531322 feet2

Total Surface Area = 945.30109531322 feet2

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aliina [53]

Answer: 33

Step-by-step explanation: The ratio is 4:7, so the number has to be a multiple of 11, and the multiple of 11 between 24 and 40 is 33.

8 0
3 years ago
Help please!! 10 points <3
tangare [24]

Answer:

x = 5

Step-by-step explanation:

15 / 3 =5

5 0
3 years ago
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SOMEONE PLEASE HELP I will mark you BRAINLIST
Lana71 [14]

Answer:

27 degrees

Step-by-step explanation:

We are given that Angle AEF is 63. We can also see that EAF is a right angle. Since angles in a triangle add up to 180, we can use this to solve for AFE:

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<em>Or we can solve it another way</em>

Since EAF is a right angle, the other angles are complementary (they add up to 90) so...

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7 0
3 years ago
P(x)=2x^3-11x^2+ax-40 if x+4 is a factor of this polynomial what is the value of a
Vika [28.1K]

Answer:

a = -86.

Step-by-step explanation:

By the Factor Theorem, if x + 4 is a factor then P(-4) = 0, so:

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a = -86.

3 0
3 years ago
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