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3 years ago

#23 solve each equation using linear and quadratic quation

1 answer:

7 0

The solution for the #23 equation is either x=9 or x= -3

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Sindrei [870]

Convert the percentage into a number then divide it by the income.

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stiks02 [169]

I tried my best at it and my guess is that in standard form is 0.00086

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3 years ago

nlexa [21]

<h3>Answer: 9V</h3>

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Reason:

The volume expression of a cone with radius r and height h is

$\frac{1}{3}\pi*r^2*h$

Let's plug in the given height h = 12 and we'd get

$\frac{1}{3}\pi*r^2*h\\\\\frac{1}{3}\pi*r^2*12\\\\\left(\frac{1}{3}*12\right)\pi*r^2\\\\4\pi*r^2\\\\$

This is the volume of the first cone. We're told the first cone has a volume of V, so we can say $V = 4\pi r^2$

We can't find the actual numeric volume because we don't know what value replaces r. So we leave it as is.

The second cone has the same height (h = 12) but the radius is now 3 times in size. Instead of r, we use 3r

Replace every copy of r with 3r. Then simplify

$4\pi*r^2\\\\4\pi*(3r)^2\\\\4\pi*9r^2\\\\9(4\pi r^2)\\\\9V\\\\$

The radius tripled which results in a volume that's 9 times bigger.

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2 years ago

Lerok [7]

It is 1082.

I hope it helps, you can do more on a calculator. :)))

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3 years ago

Oxana [17]

Answer: you did not explain it well if you did i would know it but i think i=7 w=18 h=25

Step-by-step explanation:

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3 years ago