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3 years ago

Alondra wrote the following incomplete statement.

Mathematics

1 answer:

nasty-shy [4]3 years ago

8 0

A because you can have a number bigger then 3

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A boy is flying a kite in a park. He lets the kite reach a height of 30 feet. He then lets it drop 10 feet, before he lets it go

Anastaziya [24]

45 feet would be the answer.

./....

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3 years ago

The list price for a window is $220. Net price is $160. What is the trade discount rate?

Artist 52 [7]

220-220r=160
Solve for r to get the discount rate
r=0.2727
r=0.2727×100
r=27.27%

Check
220−220×0.2727
=160

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3 years ago

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The distance between two cities is 4000 kilometers. One kilometer is 6 10 millimeters. What is the distance between the two citi

viktelen [127]

Answer: 4,000,000,000 mm

Step-by-step explanation:

One kilometer is 10^6 or 1000000 millimeters

So 4000x1000000

4x1 is 4

Annex the zeros. There are 9 zeros.

= 4,000,000,000 millimeters

3 0

3 years ago

The surface area of a cube is increasing at a rate of 15 square meters per hour. At a certain instant, the surface area is 24 sq

algol13

Answer:

The volume of cube is increasing at a rate 7.5 cubic meter per hour.

Step-by-step explanation:

We are given the following in the question:

Surface area of cube = 24 square meters.

Let l be the edge of cube.

Surface area of cube =

$6l^2 = 24\\l^2 = 4\\l = 2$

Thus, at that instant the edge of cube is 2 meters.

$\dfrac{dS}{dt} = 15\text{ square meters per hour}\\\\\dfrac{d(6l^2)}{dt} = 15\\\\12l\dfrac{dl}{dt} = 15\\\\\dfrac{dl}{dt} = \dfrac{15}{12\times 2} = \dfrac{15}{24}$

We have to find the rate of change in volume.

Volume of cube =

$l^3$

Rate of change of volume =

$\dfrac{dV}{dt} = \dfrac{d(l^3)}{dt} = 3l^2\dfrac{dl}{dt}\\\\\dfrac{dV}{dt} = 3(2)^2\times \dfrac{15}{24} \\\\\dfrac{dV}{dt} = 7.5\text{ cubic meter per hour}$

Thus, the volume of cube is increasing at a rate 7.5 cubic meter per hour.

4 0

3 years ago

6=m/8 whats does m equal?

skelet666 [1.2K]

Answer:

m=48

Step-by-step explanation:

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3 years ago

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