3 years ago

Can somebody pls help

Mathematics

1 answer:

Delvig [45]3 years ago

6 0

The answer is A domain

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Investments historically have doubled every 9 years. if you start with 2,000 investment, how much money would you have after 45

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Answer: 64,000

Equation: 2,000*2^(45/9)

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3 years ago

Percent error that is greater than 20% but less than 50%

NNADVOKAT [17]

Answer:

30 40 percent

Step-by-step explanation:

it is less that 50

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Assume Cylinder A and Cone B are the same height and the bases have the same radius. If A has a volume of 18π cm3, what is the v

disa [49]

Answer:

Option A $V_B=19\ cm^3$

Step-by-step explanation:

The volume of a cone is:

$V_B = \pi\frac{hr ^ 2}{3}$

The volume of a cylinder is:

$V_A = \pi(r ^ 2)h$

Both figures have the same height h and the same radius r.

The volume of the cylinder $V_A = 18\pi\ cm ^ 3$

We want to find the volume of the cone.

Then, we find r and h:

$V_A = 18\pi = \pi(r ^ 2)h$

We simplify.

$V_A = 18 = (r ^ 2)h$

Then the product of $(r ^ 2)h = 18$ .

We substitute this in the cone formula and get:

$V_B =\frac{\pi}{3}(18)\\\\V_B = \frac{18}{3}\pi\\\\V_B=19\ cm^3$

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3 years ago

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Nick has a bag of marbles. Without looking in the bag, he

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Answer:

Step-by-step explanation:

Ok wait. Try add

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In 1989 a postage stamp cost $.25. In 1999 a postage stamp cost $.33. Find the average rate of

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Answer:

0.33-0.25= 0.08

then 1999-1989= 10

lastly 0.008

Step-by-step explanation: so the average rate of

change in postage in<em><u> cents</u></em> per year. is 0.8 of a cent. or 0.008 of a dollar.

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2 years ago

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Can somebody pls help​

Can somebody pls help