3 years ago

Find the area of the circle

Mathematics

1 answer:

Dmitry [639]3 years ago

6 0

Answer:

To find the area of a circle you use the formula $a=\pi r^{2}$

r is the radius so plug that in.

if you only have the diameter, just divide that number by 2 to get the radius

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4/10-3/10 how do i do this please hurryyyy

oee [108]

Answer:

its 1/10

Step-by-step explanation:

4/10-3/10=1/10

7 0

3 years ago

In the year 2000,there were 8.7 deaths per 1000 reidents in the United States.If there were 281,421,906 residents in the U.S.dur

bekas [8.4K]

$\frac{deaths}{residents} \: \frac{8.7}{1000} \: \frac{x}{281421906}$
Find the "difference" between the residents but division.

281421906/1000 = 281421.906
You always have to do the same to the top
8.7×281421.906 = 2,448,370.5822

There were 2,448,370.5822 deaths

Tell me if it helps!!

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3 years ago

If -2 is the root of the quadratic equation x^2-5x+c=0 find the value of c

GaryK [48]

Answer:

c=-x^2+5x

Step-by-step explanation:

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2 years ago

Given f(x) = 6 (1 - x) +11 what is the value of f(8)

Aleksandr [31]

f(8) = 6 (1-8) +11
= 6 (-7) + 11
= -42 +11
= -31