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Lena [83]
3 years ago
6

If a circle has a diameter of 4 inches, what is the area?

Mathematics
2 answers:
gulaghasi [49]3 years ago
7 0
The formula for area of a circle is π × radius^2, and to find the radius we can just divided the diameter by 2 and get 2 inches. You don't need to use a calculator here, because π is approximately equal to 3.14, so 3.14 × 2^2 = 12.56, which is answer B. I hope this helps!
Dafna11 [192]3 years ago
6 0

Answer:

50.24

Step-by-step explanation:

i got it wrong on study Island

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Equations
morpeh [17]

Answer:

w = 10

Step-by-step explanation:

To find the value of w, you need to isolate w on one side.

You can start by subtracting 2 from both sides. What you do to one side of the equation, you have to do to both.

12 - 2 = 10

So now w is isolated and is equal to 10.

w = 10

You can check your work by replacing w with 10 in the equation.

10 + 2 = 12

7 0
2 years ago
Select the correct answer What is the solution for in the equation? 4+ 5x-7 = 10+ 3x-2 * Y Lee R=###​
Lina20 [59]

Answer:

x=11/2

Step-by-step explanation:

4+5x‒7=10+3x‒2

5x‒3=8+3x

5x‒3x=8+3

2x=11

2x/2=11/2

x=11/2

7 0
3 years ago
The answer I got for this problem was 10.8 (multiplied 18 and 60 then divided by 100) however, it stated that my answer is incor
Delicious77 [7]

9514 1404 393

Answer:

  30 mL

Step-by-step explanation:

The meaning of 60% solution is ...

  alcohol/(total volume) = 0.60

You are told the amount of alcohol is 18 mL, so you have ...

  (18 mL)/(total volume) = 0.60

Multiplying by total volume gives ...

  18 mL = 0.60 × (total volume)

Then dividing by 0.60, you have ...

  (18 mL)/0.60 = total volume = 30 mL

_____

<em>Additional comment</em>

You need to apply what you know about the real world to consider whether your answer makes any sense. If alcohol is a little more than half of the volume, and the amount of alcohol is 18 mL, then the total volume cannot be less than 18 mL. In fact, you expect it to be not quite double 18 mL.

An answer of 10.8 mL makes no sense in this context. You cannot have less total solution than you have of something that makes up a part of the total solution.

7 0
3 years ago
G let z be a random variable with a standard normal distribution. find the indicated probability. p(z ≤ −0.27)
lisov135 [29]
Bfed.ksjacNsjaebf hhvnh.kjzbdf.kjz
5 0
3 years ago
A plane is traveling 75 kilometers per hour . How many meters does the plane travel in one minute ?
IceJOKER [234]

Answer:

1250 meters per one minute

Step-by-step explanation:

see the step-by-step solution as in the picture attached below.

I hope this answer will help you. Have a nice day !

4 0
3 years ago
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