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3 years ago

Suppose the diameter of a circle is 6. What is its Radius

Mathematics

2 answers:

mina [271]3 years ago

3 0

The answer to the radius is 3 hope it I helped

AnnZ [28]3 years ago

3 0

In a circle, diameter and radius are related as :

$Diameter = 2* radius$

$Radius = \frac{1}{2} Diameter$

Now we are given diameter of circle as 6 units.

To find radius we find half of this diameter.

Half of 6 is 3.

So radius of circle is 3.

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Assume that IQ scores are normally distributed with a mean of 100 and a standard deviation of 16. If 100 people are randomly sel

laiz [17]

Answer:

0.03 is the probability that for the sample mean IQ score is greater than 103.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 100

Standard Deviation, σ = 16

Sample size, n = 100

We are given that the distribution of IQ score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling =

$\dfrac{\sigma}{\sqrt{n}} = \dfrac{16}{\sqrt{100}} = 1.6$

P( mean IQ score is greater than 103)

P(x > 103)

$P( x > 103) = P( z > \displaystyle\frac{103 - 100}{1.6}) = P(z > 1.875)$

$= 1 - P(z \leq 1.875)$

Calculation the value from standard normal z table, we have,

$P(x > 103) = 1 - 0.970 =0.03= 3\%$

0.03 is the probability that for the sample mean IQ score is greater than 103.

7 0

3 years ago

Match the equation with property used

nata0808 [166]

I dont really know the difference between them lol; also it's a little blurry

sorry

7 0

3 years ago

What is -8-2r=-7v-7v+16

Mariulka [41]

Answer:

r=7v−12

Step-by-step explanation:

Let's solve for r.

−8−2r=−7v−7v+16

Step 1: Add 8 to both sides.

−2r−8+8=−14v+16+8

−2r=−14v+24

Step 2: Divide both sides by -2.

−2r

−2

−14v+24

−2

r=7v−12

3 0

3 years ago

Here are the travel times in minutes of 19 randomly chosen New York workers:

Phoenix [80]

32 because you add all the number the divide by the total amount witch is 19

4 0

2 years ago

Simplify 3q+3q+4q²<br><br><br>Explanation and working out please

max2010maxim [7]

Answer:

6q+4q²

Step-by-step explanation:

3q+3q+4q²

All you have to do is combine like terms(CLT)

3q+3q=6q

You can't combine 6q and 4q².

The end result is 6q+4q².

-hope it helps

3 0

2 years ago

Read 2 more answers