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DaniilM [7]

2 years ago

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Mathematics

1 answer:

oksian1 [2.3K]2 years ago

7 0

Answer:

Step-by-step explanation:

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Answer:

50/50

Step-by-step explanation:

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The diameter of a circle is 50 inches.The radius of the circle is A) 100 inches B) 25 inches C) 157 inches D) 45 inches ...so wh

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The answer is B, 25 inches.

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2 years ago

Read 2 more answers

Please help thanks so much

Umnica [9.8K]

The formula for the volume of a sphere is the following:

$V= \dfrac{4}{3} \pi r^3$

Plug in V=5000π and solve for the radius.

$5000 \pi = \dfrac{4}{3} \pi r^3$

Divide both sides by $\pi$

$5000 = \dfrac{4}{3} r^3$

Multiply both sides by 3/4 (to eliminate the 4/3 on the right side)
Also, flip the equation so we have the unknown variable on the left side (math etiquette).

$r^3=3750$

Take the cube root of both sides

$r \approx 15.5$

Now, calculate the surface area since now we know the radius.
The formula for the surface area is the following:

$S=4 \pi r^2$

Plug in r=15.5

$S \approx 3033$

The second choice is your answer.

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3 years ago

If m∠A =91° and m∠B = 40°, find m∠1.

marusya05 [52]

Answer:

m∠1 is calculated as 49°.

Step-by-step explanation:

Consider the angles are the interior angles of a triangle.

m∠A =91°

m∠B = 40°

m∠1 = ?

We know that the sum of interior angles of a triangle is 180°. So,

m∠A + m∠B + m∠1 = 180°

or, m∠1 = 180°- m∠A - m∠B

or, m∠1 = 180°- 91° - 40°

or, m∠1 = 49°

Hence, m∠1 = 49°.

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3 years ago

Which best describes how to add 9.73 and 21.6

Marta_Voda [28]

Answer:

Step-by-step explanation:

9.73

21.60

31.33

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2 years ago