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WITCHER [35]
2 years ago
5

ANSWER FOR BRAINLEST (BEST TO EXPLAIN WILL GET IT)

Mathematics
1 answer:
lina2011 [118]2 years ago
5 0

Answer:

-7g+13

Step-by-step explanation:

b) because combining like terms results in:

g-8g=7g

and

15-2= 13

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Estimate...
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3 years ago
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What is the volume of a sphere with the surface area of 25 pi yd^2 ?
ratelena [41]

Answer:

V=65.4 yd^{3}

Step-by-step explanation:

To be able to calculate the sphere's volume, we have to know first what is the sphere's radius. The formula to calculate said volume is:

V=\frac{4}{3}. \pi . r

And the sphere's surface area formula is:

SA=4. \pi . r^{2}

If we know that the value of the area is 25 pi . yd^{2} we can sustitute:

25 pi . yd^{2}=4. \pi . r^{2}

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\sqrt{\frac{25 pi . yd^{2}}{4. \pi }}=r

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Now that we know the radius we can sustitute it's value on the volume formula, and the result is the volume of the sphere!

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5 0
3 years ago
I need help with this
Natali5045456 [20]

Answer:

∠A = 73°

Step-by-step explanation:

The sum of the interior angles in a polygon is

sum = 180° (n - 2) ← n is the number of sides

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sum = 180° × 3 = 540°

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2 years ago
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Answer:

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