3 years ago

Please, ASAP help 20 points

Mathematics

1 answer:

koban [17]3 years ago

5 0

Yeah you use the app called slazo

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40-30i

Step-by-step explanation:

Use distributive property.

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7=8 + r/15 <br> Simplify, with steps pleaseee

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Answer:

$7 = 8 + \frac{r}{15} \\ 7 - 8 = \frac{r}{15} \\ - 1 = \frac{r}{15} \\ \therefore \: r = - 15$

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The sum of the areas of the two circles is 80 pi square meters. Find the length of a radius of each circle of one of them is twi

nikklg [1K]

The radius of both circles are 4m and 8m.

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3 years ago

Please help don’t get it ASAP

maxonik [38]

Answer:

Option C is correct.

$38 miles$

Step-by-step explanation:

Let x be the distance cover by Michelle

Given:

A circle diameter is 3 miles.

And Michelle biked around the trail 4 times.

We know that

The circumference of a circle.

circumference = $2\pi r$ ----------(1)

where $r=\frac{Diameter}{2}$

$r=\frac{3}{2} \\r=1.5$ miles

Put $\pi =3.14$ and r value in equation 1.

$circumference = 2\times 3.14 1.5$

$circumference = 9.42 mil;es$

The circumference of a circle is 9.42 miles.

And Michelle biked 4 times, that is equal to 4 $\times$ circumference.

$x = 4\times 9.42$

$x = 37.65 miles$ .

That is equal to 38 miles.

Therefore, Michelle biked around 4 trail is 38 miles.

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2 years ago

A side of the triangle below has been extended to form an exterior angle of 64°. Find the value of x.

horsena [70]

180- 64 =116

x°+18°+116°= 180°

x°+134°=180°

x°=180-134

x°=46°

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