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3 years ago

Given a sphere with radius r, the formula 4pi r^2 gives

Mathematics

1 answer:

Shkiper50 [21]3 years ago

8 0

Answer:

Step-by-step explanation:

That's B: the surface area.

The volume of the sphere is V = (4/3)πr³; A = 4πr² happens to be the derivative of V with respect to r.

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The function y = 8.5(1.1)x models the population in thousands of a town where x is the number of years after 2000. What will be

nikdorinn [45]

Answer:

The population will be at 65.45 in 2007.

Step-by-step explanation:

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3 years ago

Is 6.78778777 irrational?

Monica [59]

No its not because its a repeating decimal for a number to be a irrational number it has to be non terminating or non repeating

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3 years ago

Simplify this expression. 2x/12(x + y)

Ymorist [56]

Answer: = 1 /6 x^2+ 1 /6 xy

Step-by-step explanation:

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3 years ago

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I need help solving polynomial in standard form

tangare [24]

Step-by-step explanation:

standard form of

1 . = x⁴-2x ²+3

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3 years ago

Mrs. Chen's students are making and decorating gift boxes for a nursing home. If the boxes are 7 inches wide, 7 inches long, and

pishuonlain [190]

Answer:

$84\text{ in}^2$ .

Step-by-step explanation:

We have been given that Mrs. Chen's students are making and decorating gift boxes for a nursing home. The boxes are 7 inches wide, 7 inches long, and 7 inches high. We are asked to find the amount of cardboard that is needed for each box.

We will use surface area of cuboid formula to solve our given problem.

$SA=2(lw+lh+hw)$ , where,

l = Length,

w = Width,

h = Height

$SA=2(7\text{ in}\cdot7\text{ in} +7\text{ in}\cdot7\text{ in}+7\text{ in}\cdot7\text{ in})$

$SA=2(14\text{ in}^2+14\text{ in}^2+14\text{ in}^2)$

$SA=2(42\text{ in}^2)$

$SA=84\text{ in}^2$

Therefore, Mrs Chen needs 84 square inches of cardboard.

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3 years ago