All categories

3 years ago

The diameter of circular CD is 120 millimeters. Which of the following is closest to the circumference of the CD in millimeters?

Mathematics

1 answer:

garik1379 [7]3 years ago

4 0

Answer:

Circumference=C=377 mm

Step-by-step explanation:

$C=\pi d$

d=120 mm

C=3.14*120=377 mm

You might be interested in

Assume that adults have IQ scores that are normally distributed with a mean of Î¼= 105 and a standard deviation Ï =20 . Find the

MArishka [77]

Answer:

0.68268

Step-by-step explanation:

We solve using z score

z = (x-μ)/σ, where

x is the raw score

μ is the population mean

σ is the population standard deviation.

For x = 85

z = 85 - 105/20

z = -1

Probability value from Z-Table:

P(x = 85) = 0.15866

For x = 125

z = 125 - 105/20

z = 1

Probabilty value from Z-Table:

P(x = 125) = 0.84134

The probability that a randomly selected adult has an IQ between 85 and 125 is calculated as:

P(x = 125) - P(x = 85)

= 0.84134 - 0.15866

= 0.68268

5 0

3 years ago

What is 1/4 subtract 1 and 1/2 A. 1/2 B. 1/8 C. 3/4 D. 3/8

Lelu [443]

Answer:

-1 1/4

Step-by-step explanation:

1/4 - (1 1/2)

Get a common denominator

1/4 - 1 2/4

Take the larger number and subtract the smaller number and take the sign of the larger

1 2/4 - 1/4 = 1 1/4

The sign of the larger was negative

-1 1/4

3 0

3 years ago

Round 0.424 to the nearest tenth

lakkis [162]

0.424 rounded to nearest tenth would be 0.4 as you can not round up because the hundredth place is not 5 or higher

5 0

3 years ago

Read 2 more answers

What is the slope of a line passing through (3, 4) and (5,8)?

Licemer1 [7]

Answer:

Step-by-step explanation:

$slope=\frac{y_2-y_1}{x_2-x_1} \\\frac{8-4}{5-3} =\frac{4}{2} =2\\slope=2$

8 0

2 years ago

The sum of a certain number and -3.4 is -8.1 find the number

kirza4 [7]

Answer:

-4.7

Explanation:

-4.7 + -3.4 = -8.1

I’m giving you an Integer Rule Cheat Sheet that I use. Hopefully it can help you with Math problems like this!

6 0

3 years ago

Read 2 more answers