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3 years ago

A circle has a radius of 2 meters. find the exact circumference of this circle in terms of pi

Mathematics

1 answer:

VLD [36.1K]3 years ago

5 0

Answer:

See below.

Step-by-step explanation:

The circumference of a circle is $2\pi r$

We know that the radius is 2 meters, so:

$2(2) \pi$

$4\pi$ meters.

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Combine the like terms to create an equivalent expression:2r+1+(−4r)+7

STatiana [176]

Answer:

2r+1+(-4r)+7

= -2r+8

= -2(r+4)

Step-by-step explanation:

3 0

3 years ago

Which scatterplot shows a linear association?

olasank [31]

Answer:

Step-by-step explanation:

A linear association means the function is a relation that can be shown with a line.

The first scatterplot is in the form of a parabola, and parabolas are the quadratic function form, meaning it cannot be linear.

Next, the second scatterplot goes diagonally, in a straight line. If we were to connect the dots using a line, then it would be a linear association, meaning that B is the correct answer.

4 0

2 years ago

Which multiplication expression is equivalent to x+8/x2 ÷ 2x+16/2x2

Pavlova-9 [17]

Answer:

I hope it will help you...

5 0

3 years ago

Read 2 more answers

Jerry says I've got my money in a great account that compounds interest monthly. The equation y=388 (1.008) represents how much

zheka24 [161]

Answer:

(a)His monthly Interest Rate=0.8%

(b)Annual Interest Rate = 9.6%

Step-by-step explanation:

For a Principal P invested at a yearly rate r, compounded m times in t years

Amount at Compound Interest= $P(1+\frac{r}{m})^{mt}$

Comparing with Jerry's equation y=388 (1.008)

(a)His monthly Interest Rate= 0.008=0.8%

(b)Annual Interest Rate= Monthly Interest Rate X 12 =0.8 X 12 = 9.6%

(c)If I invest $500 at the same rate of return,

Total Money after m months

= $P(1+\frac{r}{m})^{mt}$ $=500(1+0.008)^{m}$ $=500(1.008)^m$

7 0

4 years ago

Find the average rate of change of the function below over the interval (-4,-1).

babymother [125]

Answer:

-2

Step-by-step explanation:

$\frac{f(b)-f(a)}{b-a}\\ \\=\frac{f(-1)-f(-4)}{-1-(-4)}\\ \\=\frac{-4-2}{-1+4}\\ \\=\frac{-6}{3}\\ \\=-2$

Therefore, the average rate of change over the interval [-4,-1] is -2.

5 0

2 years ago