3 years ago

The area of the circle is 78.5 units. What is the radius? Use 3.14 for pi.

Mathematics

1 answer:

irga5000 [103]3 years ago

7 0

The radius is 5
5 x 5 = 25
25 x 3.14 = 78.5

You might be interested in

Question 9 20% of a particular brand of light bulbs fail in one year. What is the probability that three bulbs out of a random c

Delvig [45]

Answer:

The correct answer is 0.15

Step-by-step explanation:

According to the given scenario, the probability is as follows:

X $\sim$ Bin (n,p)

Here

n = 8

p = 0.20 or 20%

Now this is a binomial probability distribution

$P(X) = ^nC_x \times p^x \tmes (1 - p)^{n-x}\\\\P(3) = ^8C_3 \tims 0.20^3 \times (1 - 0.20)^5$

= 0.15

Hence, the correct answer is 0.15

5 0

3 years ago

What number should

eduard

I believe it is 4 to make it able to divide by both sides

6 0

3 years ago

There are 26 students in your class. There are 4 more girls than boys. Use a system of linear equations to find how many boys ar

baherus [9]

I hope this helps you

boys+4=girls

boys+girls=26

boys+boys+4=26

2.boys=22

boys=11

girls=15

6 0

3 years ago

Find the volume of the rectangular pyramid below.

lutik1710 [3]

Answer:

4800m³

Step-by-step explanation:

V= $\frac{lwh}{3}$ = $\frac{(30)(24)(20)}{3}$ =4800

8 0

3 years ago

Gina has $175 with which to buy items at the bake sale at school. The graph shows the amount of money she has remaining and the

Triss [41]

Answer:

Step-by-step explanation:

You can delete options A and C, because there are multiple domains and ranges throughout the graph.

B or D?

Range - y axis

Domain - x axis

You can see that the x axis goes to 25 and y axis goes till 175.

Therefore the answer is B

Hope this helps you!

8 0

2 years ago