1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ladessa [460]
3 years ago
15

The area of a circle is 50.24 square miles. What is the circle's diameter? Use 3.14 for Pi.

Mathematics
1 answer:
ratelena [41]3 years ago
7 0

Answer:

diameter = 8 miles

Step-by-step explanation:

Area of a circle = πr²

πr² = 50.24

3.14*r² = 50.24

r²= \frac{50.24}{3.14}\\\\

r² = 16

r² = 4²

r=√4²

r = 4 miles

diameter = 2 *radius = 2*4 = 8 miles

You might be interested in
Please help again, best answer = brainliest
tangare [24]
I think the answer would be B :)
4 0
3 years ago
In a experiment, the probability that event A occurs is 5/9, the probability that event B occurs is 5/7, and the probability tha
Ymorist [56]

Answer:

52.5% probability that A occurs given B occurs

Step-by-step explanation:

Suppose we have two events, A and B, the conditional probability formula is:

P(A|B) = \frac{P(A \cap B)}{P(B)}

In which

P(A|B) is the probability of A happening given that B happened.

P(A \cap B) is the probability of both A and B happening.

P(B) is the probability of B happening.

In this problem, we have that:

P(A \cap B) = \frac{3}{8}, P(B) = \frac{5}{7}

So

P(A|B) = \frac{P(A \cap B)}{P(B)} = \frac{\frac{3}{8}}{\frac{5}{7}} = 0.525

52.5% probability that A occurs given B occurs

7 0
3 years ago
If 4(a+3)=2a+12, then a= __
Verdich [7]

Answer:

45

Step-by-step explanation:

a = 78/20=45

3 0
3 years ago
Read 2 more answers
A board measures 19.5 meters in length is cut into two pieces. One piece measures 7.2 meters. Write and solve an equation to fin
Naddik [55]

Answer:

7.2+x=19.5

x=19.5-7.2

x=12.2

Step-by-step explanation:

4 0
3 years ago
Select all that apply. What are some uses for the distance formula? Finding the perimeter of polygons. Finding the area of recta
Gnesinka [82]

Answer:

Everything except the finding the midpoint

Step-by-step explanation:

If the question states the points of a shape, you can find the perimeter and the area of the polygon because you would know the dimensions and the lengths of each side, but in the options, it says the area of a rectangle, and it doesn't have to be a rectangle

You can find the equation of the circle, by finding the diameter of the circle and the radius. With the diameter, you would be able to find the centre of the circle and then you need to divide the diameter by two to get the radius.

For the midpoint, you use the midpoint formula. You just need to sub in the points into the formula and you would get the midpoint

When you are given two points on a graph (or worded problem), and it says that for every x number of km it uses y amount of gas and the question asks to find how much gas is needed in between these two points, you can do this. Find the distance between the two points and then use algebra to work out the amount of gas required

3 0
2 years ago
Read 2 more answers
Other questions:
  • 24x4y/3x-4y-1<br><br> simplest form
    7·2 answers
  • Hi! I would really appreciate it if you can help me with this problem.
    11·1 answer
  • Plz help me I need to turn it in on Monday
    13·1 answer
  • Trigonometry
    12·1 answer
  • The surface of water can act like a sort os skin due to a property of liquids called
    7·1 answer
  • X is greater than or equal to -8 and less than or equal to 2
    15·1 answer
  • Heather purchased a prepaid phone card for $30 . Long distance calls cost 14 cents a minute using this card. Heather used her ca
    10·2 answers
  • It took researchers three weeks analyze a large amount of data using a super computer how many minutes did it take them to analy
    11·1 answer
  • Find the distance between the points (-3,-2) and (-1, -2).<br> 2<br> V6<br> 4
    11·1 answer
  • Solve for x <br> Pls help I need this for study guide
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!