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3 years ago

V=1/3πr² Solving for r²

1 answer:

6 0

Multiply both sides of the equation by 3.
$3V= \pi r^{2}$

Divide both sides of the equation by π.
$\frac{3V}{ \pi } = r^{2}$

Solved!!!! :-)

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4x10^5 scientific notation

dmitriy555 [2]

This is already written in scientific notation, but if you are asking what the answer would be written out it is: 400000

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3 years ago

Batman took a bicycle trip. In all, he traveled 6 hours at a rate of 28 mph. What was his total distance ?

Mice21 [21]

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3 years ago

Read 2 more answers

What is x if f(x) = -2?

Andrej [43]

Answer:

The answer is 2 or 2x

Step-by-step explanation:

Hope this helps!!

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2 years ago

Find the sum of the given arithmetic series. 14 + 28 + 42 + 56 + ... + 280

cricket20 [7]

14 + 28 + 42 + 56 + … 280

= 14 (1 + 2 + 3 + 4 + … + 20)

= 14 × 20 × 21 / 2

= 2940

where we use the well-known identity,

$\displaystyle \sum_{i=1}^ni = 1 + 2 + 3 + \cdots + n = \dfrac{n(n+1)}2$

6 0

3 years ago

The sale price of a spring break vacation package was $209.99 the travel agent said by booking early you saved $20.00. Find the

prisoha [69]

Answer:

$\%\ decrease = 9.52\%$

Step-by-step explanation:

Given

$Sales\ Price = \$209.99$

$Saved = \$20.00$

Required

Determine the %decrease

First, we need to determine the amount paid

$Amount = Sales\ Price - Amount\ Saved$

$Amount = \$209.99 - \$20.00$

$Amount = \$189.99$

The percentage decrease is the calculated as follows:

$\%\ decrease = -100\% * \frac{Final - Initial}{Initial}$

In this case;

$Initial = Sales\ Price = \$209.99$

$Final = Amount\ Paid = \$189.99$

So; we have:

$\%\ decrease = -100\% * \frac{189.99 - 209.99}{209.99}$

$\%\ decrease = -100\% * \frac{-20}{209.99}$

$\%\ decrease = 100\% * \frac{20}{209.99}$

$\%\ decrease = \frac{2000\%}{209.99}$

$\%\ decrease = 9.52426306015\%$

$\%\ decrease = 9.52\%$ (Approximated)

7 0

3 years ago