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3 years ago

A circle has a diameter of 10 cm. what is the circumference ?

Mathematics

2 answers:

satela [25.4K]3 years ago

5 0

Answer:

Step-by-step explanation:

All u gotta do is split it in half

Anastaziya [24]3 years ago

4 0

Answer:

31.4 cm

Step-by-step explanation:

The circumference of a circle is given by

C = pi * d where d is the diameter

C = 3.14 * 10

C = 31.4 cm

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A small accounting firm has 444 accountants who each earn a different salary between \$50{,}000$50,000dollar sign, 50, comma, 00

natta225 [31]

Answer:

The correct option is;

(Choice B) Both the mean and median will increase, but the mean will increase by more than the median.

Step-by-step explanation:

Here, we are expected to show the differences (advantages/properties) of the mean and median

Note that the definition of the mean is the sum of the value of all data points divided by the number of data points

Assuming the four accountants each earn $ 55,000.00

Therefore, initial mean before getting rd of the part-time accountant is

(55+ 55+ 55 + 55 + 10)/5 = 46

Final mean after the part-time accountant is gone =(55+ 55+ 55 + 55 )/4 = 55

Therefore the mean increases

However, the median is given by the middle value when the list of values are arranged in increasing order as

55, 55, 55, 55, 10

Therefore the initial median is 55

Final median after the part-time accountant is gone is

55, 55, 55, 55

Therefore, final = (55 + 55)/2 = 55

That is the median remains the same that is little or increase.

Therefore, since the range of values for the full time accountants salaries weigh less than the difference between the average full time salary and a single part time, both the mean and the median will increase but the mean will increase more than the median

4 0

3 years ago

What is the image point of <br> (-3,4)after the transformation D2∘R90∘<br>

zhenek [66]

A composite transformation consists of two or more transformations with a procedure of starting from the rightmost transformation

The location of the image of the point (-3, 4), after the transformation $D_2 \circ R90^{\circ}$ is <u>(-8, -6)</u>

Reason:

The given coordinate is (-3, 4)

The required transformation is $D_2 \circ R90^{\circ}$

Solution:

A rotation transformation of (x, y) 90° gives (-y, x)

Therefore;

The rotation of the point (-3, 4) 90° counterclockwise gives (-4, -3)

A transformation of D2 is a dilation by a scale factor of 2

Therefore; D2(-4, -3) gives 2×(-4, -3) = (-8, -6)

Which gives;

The image of (-3, 4), after the transformation $D_2 \circ R90^{\circ}$ → (-8, -6)

Learn more about composite transformations here;

brainly.com/question/12366556

7 0

3 years ago

6 pints = to how many quarts=

Alchen [17]

Answer:

6 pints = 3 quarts = 5.91 cups = 0.74 gallons

(cups and gallons are rounded)

Step-by-step explanation:

5 0

3 years ago

You have 200 items that cost $20 and you are selling them at the price of $100.

allochka39001 [22]

Your total profit is $13,000. First you bought the 200 items for $20 each. That costs $4,000. Then you sold $50 of the items at $100 each. That’s $5,000. So already you’re in the green. You’ve already made $1,000 profit. Then you sold the rest of the items at a 20% discount. 150 items multiplied by $80 is $12,000. $12,000 plus the $1,000 equals $13,000 total.

3 0

3 years ago

Read 2 more answers

A software engineer is creating a new computer software program. She wants to make sure that the crash rate is extremely low so

Soloha48 [4]

Answer:

a) the sample size is 400

b) 95% confidence Interval for p is ( 0.0286, 0.0714 )

Step-by-step explanation:

Given the data in the question;

sample size n = 400

x = 20

p = x / n = 20 / 400 = 0.05

q = 1 - p = 1 - 0.05 = 0.95

n = 400

Hence, the sample size is 400

b) 95% confidence Interval for p;

At 95% confidence interval,

significance level ∝ = 1 - 95% = 1 - 0.95 = 0.05

∝/2 = 0.05 / 2 = 0.025

so, Z critical Value ; $Z_{\alpha /2$ = 1.96 { from table }

So for Confidence Interval for p;

⇒ p' ± $Z_{\alpha /2$ √( p'q' / n )

we substitute

⇒ 0.05 ± 1.96√( (0.05 × 0.95 ) / 400 )

⇒ 0.05 ± 1.96√( 0.00011875 )

⇒ 0.05 ± 1.96 × 0.010897

⇒ 0.05 ± 0.021358

⇒ ( 0.05 - 0.021358 ), ( 0.05 + 0.021358 )

⇒ ( 0.0286, 0.0714 )

Therefore, 95% confidence Interval for p is ( 0.0286, 0.0714 )

8 0

3 years ago