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Dmitry [639]
3 years ago
8

To the nearest tenth of a centimeter, what is the circumference of a circle with a radius of 2.5 cm? (Use 3.14 for π.)

Mathematics
1 answer:
maria [59]3 years ago
6 0
To find a circumference of a circle you have to use this expression: C = d<span>π. d stands for the diameter, so let's find that first.

To find the diameter multiply the radius by 2.
2.5 x 2 = 5

Let's rewrite our equation now. C = 5 </span>· π 
<span>15.71 = </span>5 · π

The answer is 15.71
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Answer:

93.32 %

Step-by-step explanation:

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from z-score table this corresponds to .9332     this is  93.32 %

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Nancy found that x=1 is one solution to the quadratic equation (x 2)2=a. what is the value of a? -9 -3 3 9
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The value of the <em>a, </em>in the provided quadratic equation for which Nancy found one solution as x=1 is 9.

<h3>What is the solution of equation?</h3>

The solution of the quadratic equation is the solution of the variable of the equation, for which the equation satisfies.

Nancy found that x=1 is one solution to the quadratic equation. The quadratic equation is,

(x +2)^2=a

For this equation, one solution is <em>x</em>=1. Put this value in the above equation to get the value of <em>a,</em>

(1 +2)^2=a\\(3)^2=a\\9=a\\a=9

Thus, the value of the <em>a, </em>in the provided quadratic equation for which Nancy found one solution as x=1 is 9.

Learn more about the solution of the equation here;

brainly.com/question/21283540

5 0
2 years ago
Read 2 more answers
The Figure is made up of 2 rectangels and 2 right triangel's What is the area of the figure?
AlekseyPX
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Which number is located at Point A on the number line?
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Step-by-step explanation:

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                       ^   ^

the ^ on the left is -5 and one number over is 4 which is the ^ on the right

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