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3 years ago

Use number properties to simplify the following expression.

1 answer:

4 0

Answer: 3

Explanation:

You gotta use PEMDAS jit!! it stands for Parenthesis , Exponents , Multiplication, Division, Addition, Subtraction if u dont know. This is the order you're supposed to solve equations. so that means you have to solve the equation inside da parenthesis.

(5+3) = 8

now its just -5 + 8 and thats equals 3.

btw u better be 5th grader or sum cuz this is the easiest shi ever

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The spoke of a wheel reaches from the center of the wheel to its rim. If the circumference of the rim of the wheel is 42 inches,

Damm [24]

To get the length of a spoke, you would divide 42 by pi (giving you diameter), then divide that number by 2 (to get the radius). (42/pi)/2=6.68
This is your answer.

I hope this helps!

8 0

3 years ago

PLEASE HELP ME I BEG OF YOU I REALLY NEED HELP

Len [333]

Answer:

5 percent is the difference between 10 and 5 because the ramp needs to be 5 percent but most average wheelchair ramps are 10 degrees and there is a 5 degree differance

Step-by-step explanation:

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6 0

3 years ago

Read 2 more answers

Find the mean and standard deviation for the set of data.

dem82 [27]

The mean and standard deviation for the set of data will be 16 and 5.87. Then the correct option is A.

<h3>What is a standard deviation?</h3>

It is the measure of the dispersion of statistical data. Dispersion is the extent to which the value is in a variation.

The set of data is given below.

16, 22, 8, 5, 20, 18, 14, 17, 24

The mean of the data set will be

μ = (16 + 22 + 8 + 5 + 20 + 18 + 14 + 17 + 24) / 9

μ = 144 / 9

μ = 16

Then the standard deviation of the data set will be

$\rm \sigma = \sqrt{\dfrac{\Sigma (x_i - \mu)^2}{n}} \\\sigma = \sqrt{\dfrac{(16 - 16)^2 +(22 - 16)^2 + (8-16)^2 + ......+(24-16)^2 }{9}} \\\sigma = \sqrt{\dfrac{310}{9}}\\$

Simplify the expression further, then we have

σ = √34.44

σ = 5.87

The mean and standard deviation for the set of data will be 16 and 5.87.

Then the correct option is A.

More about the standard deviation link is given below.

brainly.com/question/12402189

#SPJ1

3 0

1 year ago

Apples costs $1.98 per pound, how much does 1.5 pounds of apples cost

storchak [24]

<h2>$2.97 Is the answer.</h2>

Step-by-step explanation:

I did 1.98/2 to get the .5 in the equation and got .99 then I added that to 1.98 and for a final answer I came up with $2.97.

<u><em>PLEASE MARK BRAINLIEST</em></u>

7 0

3 years ago

If a data set has 16 data values,the number of values in the upper quartile is

wolverine [178]

Answer:

4 because a quartile is really one fourth of the entire amount and if the entire amount is 16, the upper quartile will consist of 4 values. This was arrived at by simply finding 1/4 of 16 or by dividing 16 by 4.

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3 years ago