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3 years ago

7

You put a fence around the dog pen and fill it with gravel. The fence costs $1.50 per foot. One bag of gravel covers 4 square fe

et and costs $3.50. How much do you spend?

1 answer:

Maslowich3 years ago

6 0

$124.00 that’s the answer :D

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A circle has an area of 153.86 units2 and a circumference of 43.96 units. If the radius is 7 units, what can be said about the r

dusya [7]

Step-by-step explanation:

$\text{Circumference:}\\\\C=2\pi r\\\\\text{Area:}\\\\A=\pi r^2\\\\\dfrac{A}{C}=\dfrac{\pi r^2}{2\pi r}\qquad\text{cancel}\ \pi\ \text{and}\ r\\\\\dfrac{A}{C}=\dfrac{r}{2}\\\\\bold{The\ number\ of\ areas\ of\ a\ circle\ is}\ \dfrac{r}{2}\ \bold{larger\ than\ its\ circumference}.$

$\text{For a given area and circumference}:\\\\A=153.86,\ C=43.96,\ r=7\\\\\dfrac{A}{C}=\dfrac{153.86}{43.96}=3.5=\dfrac{7}{2}=\dfrac{r}{2}\\\\\dfrac{A}{C}=\dfrac{r}{2}$

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=A%28x%29%3D3%5E2" id="TexFormula1" title="A(x)=3^2" alt="A(x)=3^2" align="absmiddle" class="la

kogti [31]

It is good equation. Look, that:
81 = 3 x 3 x 3 x 3 = 3^4.
So you have to solve:
3^x = 3^4
exponents have to be the same, so
x=4
That's mean that A(4) = 81

5 0

3 years ago

Read 2 more answers

Helppppppppp;pppp]ppp

krok68 [10]

Answer:

315 people bought tickets.

Step-by-step explanation:

270 divided by 6 = 45

45 x 7 = 315

7 0

3 years ago

Read 2 more answers

Can someone explain to me how to do this

Otrada [13]

Angles on a straight line add up to 180°, so:

x + 60 = 180

x = 180 - 60

x = 120°

3 0

4 years ago

Read 2 more answers

If 2% of a number equals 9, find 4% of that number.

s2008m [1.1K]

Answer:

18

Step-by-step explanation:

The number you are getting the percent from is 450

4 0

3 years ago