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Verdich [7]
3 years ago
7

The volume of two spheres is shown:

Mathematics
2 answers:
sp2606 [1]3 years ago
6 0

Answer:

0.6 in

Step-by-step explanation:

  • <em>Volume of the sphere formula: V = 4/3πr³, where r is the radius</em>

<u>Given:</u>

  • Volume of Sphere A = 30 cubic inches
  • Volume of Sphere B = 10 cubic inches

<u>Let R be the radius of sphere A and r be the radius of sphere B</u>

  • 30 = 4/3*3.14R³
  • R³ = 30*3/(4*3.14) ≈ 7.2
  • R = ∛7.2 ≈ 1.9 in

<u>And, similarly,</u>

  • r³ = 10*3/(4*3.14) ≈ 2.4
  • r = ∛2.4 ≈ 1.3 in

<u>The difference:</u>

  • R - r = 1.9 - 1.3 = 0.6 in

Sliva [168]3 years ago
3 0

Answer: 20.0 inches

Step-by-step explanation:

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The reason that it would be 0.364 is because the thousandths place is the third decimal place, which would leave you with a 3 but since there is a 6 after the 3, the 3 would be rounded up to a 4.

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Plz help! free brainlist and points! plz dont send wrong answers or false links<br> solve: 3x +7 =-8
asambeis [7]

Answer:

-5

Step-by-step explanation:

3x+7=-8

3x+7-7=-8-7

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A line goes through the point (6,-2) and has a slope of -3. What is the value of a if the point (a,7) lies on the line?​
Vikki [24]

Answer:

<h2>a = 3</h2>

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

m =  \frac{ y_2 - y _ 1}{x_ 2 - x_ 1}  \\

From the question the slope is - 3

To find the value of a we have

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Maru [420]

Answer:

(12, 487)

Step-by-step explanation:

y = 3.7x + 442 ----› Eqn. 1

y = 14.4x + 312 ----› Eqn. 2

Substitute y = (3.7x + 442) into eqn. 2.

y = 14.4x + 312 ----› Eqn. 2

3.7x + 442 = 14.4x + 312

Collect like terms

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Divide both sides by -10.7

x = 12.1495327

Substitute x = 12.1495327 into eqn. 1.

y = 3.7x + 442 ----› Eqn. 1

y = 3.7(12.1495327) + 442

y = 486.953271

The solution to the system is rounded to the nearest integer:

(12, 487)

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