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Basile [38]
2 years ago
13

If it diameter we’re reduced by half it’s volume would be

Mathematics
1 answer:
marishachu [46]2 years ago
3 0
Well lets work it out.
Diameter = 2 * Radius
Diameter * 1/2 = 1/2 * 2 * Radius
That would mean that the Radius would also be halved.
(1/2 * Radius)^2 * pi * height = volume, and 0.5^2 = 1/4, so its volume is reduced by a fourth
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divide total miles by total time:

60.9 / 3.5 = 17.4 miles per hour

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3 years ago
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6% of what number is 30
uranmaximum [27]
1.8 is 6 percent of 30
4 0
2 years ago
PLEASE HELP
Usimov [2.4K]

Answer:

r\approx0.03\text{ or about $3\%$}

Step-by-step explanation:

The standard compound interest formula is given by:

\displaystyle A=P(1+\frac{r}{n})^{nt}

Where A is the amount afterwards, P is the principal, r is the rate, n is the times compounded per year, and t is the number of years.

Since we are compounding annually, n=1. Therefore:

\displaystyle  A = P (1+r)^{t}

Lester wants to invest $10,000. So, P=10,000.

He wants to earn $1000 interest. Therefore, our final amount should be 11000. So, A=11000.

And our timeframe is 3.3 years. So, t=3.3. Substituting these values, we get:

11000=10000(1+r)^{3.3}

Let’s solve for our rate r.

Divide both sides by 10000:

1.1=(1+r)^{3.3}

We can raise both sides to 1/3.3. So:

\displaystyle (1.1)^\frac{1}{3.3}=((1+r)^{3.3})^\frac{1}{3.3}

The right side will cancel:

\displaystyle r+1=(1.1)^\frac{1}{3.3}

So:

\displaystyle r=(1.1)^\frac{1}{3.3}-1

Use a calculator:

r\approx0.03

So, the annual rate of interest needs to be about 0.03 or 3% in order for Lester to earn his interest.

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2 years ago
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Scorpion4ik [409]
<h2>Answer: -50.4</h2>

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5 0
3 years ago
James has 12 dimes in hus pocket.How much money does he have
Marina86 [1]

Answer:

$1.20

Step-by-step explanation:

A dime is worth 10¢.

10¢ x 12 = 120¢

Since a dollar is 100¢, James would have a dollar and 20¢ left over. So, $1.20.

7 0
2 years ago
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