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3 years ago

A set of weights includes a 5 lb barbell and 4 pairs of weight plates. Each pair of

Mathematics

1 answer:

Zina [86]3 years ago

5 0

Answer:

The answer to this question would be B:

Based on the question, since the weight of the weight plates are 20 lbs, this would be represented by the 20x in the function. As well, the 5 lb barbell would be represented by the 5 in the function. The range of the function is determined by the amount of weight plates are added. So if I added one weight plate the equation would equal, f(x) = 20(1) + 5 = 25. This continues on the more and more weight plates you add.

Hope this reached you well :)

Step-by-step explanation:

20 = weight of the weight plates

x = amount of weight plates.

5 = weight of the barbell

f(x) = 20(0) + 5 = 5

f(x) = 20(1) + 5 = 25

f(x) = 20(2) + 5 = 45

f(x) = 20(3) + 5 = 65

f(x) = 20(4) + 5 = 85

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Find and interpret the mean absolute deviation of the data. Round your answers to the nearest tenth. If necessary 101.5 98.7 95.

lesya692 [45]

Answer:

$\bar X = 100.4$

And we can calculate the deviations from each value like this:

$|101.5-100.4 |=1.1$

$|98.7-100.4 |=1.7$

$|95.4-100.4 |=5.0$

$|92.3-100.4 |=8.1$

$|109.8-100.4 |=9.4$

$|104.7-100.4|=4.3$

And the mean absolute deviation would be:

$MAD =\frac{1.1+1.7+5.0+8.1+9.4+4.3}{6}= 4.93$

Step-by-step explanation:

For this case we have the following dataset given:

101.5 98.7 95.4 92.3 109.8 104.7

We can calculate the mean with the following formula:

$\bar X =\frac{\sum_{i=1}^n X_i}{n}$

And replacing we got:

$\bar X = 100.4$

And we can calculate the deviations from each value like this:

$|101.5-100.4 |=1.1$

$|98.7-100.4 |=1.7$

$|95.4-100.4 |=5.0$

$|92.3-100.4 |=8.1$

$|109.8-100.4 |=9.4$

$|104.7-100.4|=4.3$

And the mean absolute deviation would be:

$MAD =\frac{1.1+1.7+5.0+8.1+9.4+4.3}{6}= 4.93$

8 0

3 years ago

What is the answer so i can pass

Lelechka [254]

Answer:

8/100 is equivalent to 0.08

Step-by-step explanation:

The second digit place to the right of the decimal point is the hundredths place, so that is where the 8 belongs because it is 8/100 in fraction form.

Hope this helped :)

6 0

3 years ago

Need help with this plzzzz

sweet [91]

I would say D my dear friend from what i see from the patterns hope it helps :) and sorry if its wrong i tried lol

8 0

3 years ago

Read 2 more answers

Need help with finding out what X is?

Marianna [84]

Answer:

Step-by-step explanation:

x + 4 = 2x + 1

-x -x

4 = 1x + 1

-1 -1

3 = 1x

-- --

1 1

3 = x

Check:

3 + 4 = 2(3) + 1

7 = 6 + 1

7 = 7

7 0

3 years ago

If f(x)=2x+1 and g(x)=x^2-1, find (f/g)(x)

Debora [2.8K]

Given : f(x)=2x+1 and g(x)=x^2-1.

We need to find (f/g)(x).

<u>Note: In the given options, we have 2x + 1 and x^2 - 7 parts.</u>

So, let us take f(x)=2x+1 and g(x)=x^2-7.

$(f/g)(x) =\frac{f(x)}{g(x)}$

Plugging f and g functions in the formula.

$(\frac{f}{g})(x)=\frac{(2x+1)}{(x^2-7)}$

Also, it would be undefined for x = ± square root 7 becaue it would give 0 in the denomiantor.

Therefore, correct option is C. 2x + 1 / x^2 - 7, x ≠ ± square root 7.

8 0

3 years ago