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inna [77]
3 years ago
7

FIND THE RADIUS OF A CIRCLE WHO'S DIAMETER IS40 FEET

Mathematics
2 answers:
iVinArrow [24]3 years ago
8 0

Answer:

40 feet

radius is half of the diameter, so the radius is half of 40

radius = diameter/2

radius = 40/2

radius=20 feet

eimsori [14]3 years ago
7 0

Answer:

20ft

Step-by-step explanation:

Lesson : Circumference

When finding radius from diameter, the step is simple.

All you have to do is divide the diameter by 2

So in this case we have 40feet as the diameter, so you have to:

40/2

==> 20

Therefore the radius is 20ft

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Let x be the number of cars. We will find out how many cars you have to wash to make as much money as your friend:
10x - 25= 13x - 55 Add 25 on both sides and subtract 13x, also both sides:
3x = -30 Now divide both sides by -3:
x= 10 cars you have to wash.

7 0
3 years ago
Assume that adults have IQ scores that are normally distributed with a mean of mu equals 105 and a standard deviation sigma equa
kondor19780726 [428]

Answer:   0.6827

Step-by-step explanation:

Given : Mean IQ score : \mu=105

Standard deviation : \sigma=15

We assume that adults have IQ scores that are normally distributed .

Let x be the random variable that represents the IQ score of adults .

z-score : z=\dfrac{x-\mu}{\sigma}

For x= 90

z=\dfrac{90-105}{15}\approx-1

For x= 120

z=\dfrac{120-105}{15}\approx1

By using the standard normal distribution table , we have

The p-value : P(90

P(z

Hence,  the probability that a randomly selected adult has an IQ between 90 and 120 =0.6827

5 0
3 years ago
Read 2 more answers
If you’re correct I’ll give u brainlist!!
Licemer1 [7]

Answer:

The triangles are not congruent.

8 0
3 years ago
The seating capacity of a theater is 250. Tickets are $3 for children and $5 for adults. The theater must take in at least $1100
maksim [4K]

Answer:

x + y ≤

3x + 5y ≥ 1100

Step-by-step explanation:

Given:

Seating capacity of theater = 250

Cost of each child ticket = $3

Cost of each adult ticket = $5

Cost per performance = $1100 at least

Find:

System of inequalities

Computation:

Let;

x = Number of children's tickets

y = Number of adult tickets

So

x + y ≤

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5 0
2 years ago
How to take 1.20 into a faction
sergejj [24]

<em>Answer:</em>

<em>Convert the decimal number to a fraction by placing the decimal number over a power of ten. Since there is  1   number to the right of the decimal point, place the decimal number over  </em>

<em>10  1 </em>

<em> (10 ). Next, add the whole number to the left of the decimal. </em>

<em>1  2 /10 </em>

<em>Reduce the fractional part of the mixed number. </em>

<em>1  1 /5 </em>

<em>Reduce the fraction. </em>

<em>6/ 5 </em>

<em />

<em>Step-by-step explanation:</em>

<em />

6 0
3 years ago
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