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Paraphin [41]
3 years ago
11

Shelly biked 21 miles in 4 hours.a.What is Shelly's average speed in miles per hour?

Mathematics
1 answer:
densk [106]3 years ago
6 0
Divide 21 by 4. You get 5.25. BUT convert it to by 60. Then it is 5.15. :)
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A runner increases his velocity from 0 m/s to 20 m/s in 2.0 s. What was his average acceleration?
goblinko [34]

Answer:

a =  \frac{dv}{dt }  =  \frac{20 - 0}{2}  = 10

7 0
3 years ago
Complete the sentences below the radius of a circle is _____ the length of its diameter. the diameter of a circle is ______ the
son4ous [18]

Answer:

Half;  twice

Step-by-step explanation:

In a circle, the radius is said to be the distance from the center of the circle to any point on the edge of the circle, it is denoted as "r". The radius is called a radii if it is more than one.. The radius of a circle is half the length of the diameter of a circle because the diameter of a circle is the distance of the line that passes through the center of a circle touching both edges of the circle. It is denoted as "d".

Thus,

2r = d

r = d/2

For example, if the radius of a circle is 10cm, the diameter of the circle will be calculated as: d = 2 * 10 = 20cm. Which means if the radius is 10cm, diameter will be 20cm.

Therefore, the radius of a circle is half the length of its diameter. the diameter of a circle is twice the length of its radius

5 0
3 years ago
Help me on this please
fenix001 [56]

Answer:

Radius = 3

Since radius is half of diameter diameter is 6 because 3 x 2= 6

Now I multiply that by pi so...

6 x 3.14 = 18.84 So 18.84 is our answer.

4 0
3 years ago
in 2018 the company had profits of $16 million. In 2019, the company's profits were $24 million. What was the percent of the inc
Dafna11 [192]

As given by the question

There are given that the profit of $16 milonin 2018 and $24 milion in 2019.

Now,

To find the profit,

\frac{24-16}{16}\times100

Then,

\begin{gathered} \frac{24-16}{16}\times100=\frac{8}{16}\times100 \\ =\frac{1}{2}\times100 \\ =0.5\times100 \\ =50\% \end{gathered}

Hence, the correct option is C.

3 0
2 years ago
Mike has an adjusted gross income of $85,643. He claims two exemptions and can deduct $896 for state income tax, $2,145 for char
VashaNatasha [74]

Answer:

The answer would be C. $71,829

Hope this helped :D

5 0
3 years ago
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