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Nina [5.8K]
3 years ago
7

Find the radius of a circle with circumference of 45.84 meters. Use 3.14

Mathematics
2 answers:
Anastasy [175]3 years ago
7 0

Answer:

approx. 7.3 m

Step-by-step explanation:

The formula for the circumference of a circle is  s = r·Ф, where r is the radius and Ф is the central angle in radians.

Here C = 45.84 m = 2π·r.  Solving for the radius, r, we get:

       45.84 m

r = --------------- = 7.299 m, or approx. 7.3 m.

          2(3.14)

alukav5142 [94]3 years ago
5 0

Answer:

3.8 meters

Step-by-step explanation:

In order to find the circumference for a circle, we use the formula π(radius)²

The circumference give is 45.84 and the π given is 3.14

All we have to do is to just substitute them.

45.84 = 3.14(radius)²

45.84 / 3.14 = radius²

14.6 = radius²

radius = √14.6

radius = 3.82 ≅ 3.8

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Sedaia [141]

Answer:

2(x + 3) <9

Step-by-step explanation:

<u>Two times</u> the <em>quantity of a number increased by 3</em> is <u>less than 9</u>

       2  ·                                          (x + 3   )                           < 9    

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5 0
2 years ago
Can someone please help out? I’m stuck on this question and can’t figure it out for the life of me
Mumz [18]

The measure of angle A will be 61°

The sum of A and B is 122°

The sum of A B and C is 151°

<h3>How to calculate the angle?</h3>

It should be noted that complementary angles have an angle of 90°.

Therefore, the value of A will be:

= 90° - 29°

= 61°

The value of B will be:

= 90° - 29 = 61°

The value of A and B will be:

= 2 × 61°

= 122°

The value of A B and C will be:

= 122 + 29

= 151°

Learn more about angles on:

brainly.com/question/25716982

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6 0
1 year ago
Assume that when adults with smartphones are randomly​ selected, 48​% use them in meetings or classes. If 8 adult smartphone use
Lisa [10]

Answer:

The probability is 2.2%

Step-by-step explanation:

The probability that a randomly selected adult uses the telephone in classes is always equal to 0.48.

If x represents the number of adults selected from among the 8 that the telephone uses in classes, then x is a discrete random variable that follows a binomial distribution, with:

p = 0.48

q = 0.52

n = 8

We want to find the probability of x = 5

P(x) = \frac{n!}{x!(n-x)!} *p ^ n *q ^{n-x}\\\\ P(x = 5) = \frac{8!}{5!(8-5)!} * 0.48 ^ 8 * 0.52 ^ 3\\\\ P(x = 5) = 0.02218

The probability is 2.2%

6 0
3 years ago
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Dafna11 [192]
X=1 is the answer hope this helps
4 0
3 years ago
Arc is 41 and angle is 40. I have no other given information but I have to find x
tiny-mole [99]

First of all I want to point out you drew the diagram a little wrong. The Arc is 41 doesn't mean its 41 degrees it means it has length 41 so remove the degrees symbol.

Now for the answer the other arc have to have angle 40 too because vertical angles. And because the radius is the same, both of the length has formula 40/360*pi*2*radius which is 41 in this case. So x has to be 41 also :) Done!

7 0
3 years ago
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