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Viefleur [7K]
3 years ago
6

Help me pls would be appreciated

Mathematics
1 answer:
NeX [460]3 years ago
6 0

Answer:

Sphere volume is this formula

V=(4/3)πr^3

plug in 21 for r in this formula

If you are meant to round pi to 3.14 the answer is = 38722.72

If you are not meant to round pi to 3.14 the answer is = 38792.39

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One angle of a triangle measures 10 degrees more than the second. the measure of the third angle is twice the sum of the first t
Leno4ka [110]
Let x = second angle
let x + 10 = first angle
let 2( (x) + (x+10) ) = third angle.
Since the interior of a triangle equals 180° then,
(x) + (x + 10) + 2((x) + (x + 10)) = 180
x + x + 10 + 2(2x + 10) = 180
x + x + 10 + 4x + 20 = 180
6x + 30 = 180
6x = 150
x = 25
Inputting the value of x gives us each angle.

second angle = 25°
first angle = x + 10 = 25 + 10 = 35°
third angle = 2( (x) + (x+10) ) = 2( (25) + (25+10) )
= 110°
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3 years ago
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About 15 inches- by pythag- \sqrt{16^{2} - 5^{2} }
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2x+3

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andre [41]

Answer:

x + y ≥ 3

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Step-by-step explanation:

In the picture attached, the problem is shown.

The solution to the system:

x + y ≥ 3

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