4 years ago

I need to know the answer

1 answer:

6 0

$\pi *r^2=28.26$
divide both sides by pi
$r^2=9$
$\sqrt{r^2} = \sqrt{9}$
r=3
Radius is 3
diameter is double the radius, so diameter = 6

You might be interested in

Which ratio is smaller 4:2 or 5:4

zysi [14]

Think of ratios as fractions

4:2 = 4/2 = 2

5:4 = 5/4 = 1.25

2 > 1.25 ∴ 5:4 is smaller by 0.75

5:4 is your answer

hope this helps

5 0

3 years ago

Read 2 more answers

2(4.r + 3) = 7x+5<br><br> (SHOW WORK)

KatRina [158]

Answer: r=7x-1/8

Step-by-step explanation:

2(4r+3)=7x/2+5/2

4r+3=7x+5/2

4r+3-3=7x+5/2 -3

4r=7x+5/2 -3

4r/4= 7x-5/2/4 -3/4

r=7x-1/8

6 0

3 years ago

Help me with questions 5-8

QveST [7]

5. 71%
6. 90%
7. 40%
8. 25%

7 0

4 years ago

A quality assurance specialist makes $22 an hour for the first 40 hours she works during a week and $29 an hour for each hour wo

Elodia [21]

Answer:

hopes this helps

Step-by-step explanation:

this is a tricky one here

40x X 22= $880

second week

40x X 29=1,160

7 0

3 years ago

Read 2 more answers

By the third day of a particular week, 2 accidents have already occurred in the intersection. What is the probability that there

Leona [35]

Answer:

The right answer is "0.70".

Step-by-step explanation:

The given query seems to be incomplete. Please find below the attachment of the full query.

By using the Bayes' theorem, we get

⇒ $P[(X$

By putting the values, we get

$=\frac{[P(2)+P(3)]}{[1-P(0)-P(1)]}$

$=\frac{(0.20+0.15)}{1-0.20-0.30}$

$=\frac{0.35}{0.5}$

$=0.70$

6 0

3 years ago