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notka56 [123]
2 years ago
15

- 4. What is the roster form of the set K = {x/x are odd numbers from 2 to 8} ? A. H = {2, 4, 6, 8} C. H = {3, 4, 5, 6, 7} B. H

= {3, 5, 7} D. H = {2,8} 1 2 3 ? Which method for theiva CIV & CLUJ -​
Mathematics
1 answer:
tangare [24]2 years ago
3 0
<h3>Answer:  H = {3, 5, 7}</h3>

Explanation:

We simply list any odd number that is between 2 and 8. The term "roster form" can be thought of as listing the roster of a sports team (eg: baseball). So instead of describing what the numbers look like, we list out the numbers themselves. Those numbers being 3, 5 and 7.

Something like {2,4,6,8} is ruled out because we're dealing with odd numbers only.

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Does the residual plot indicate that a line is a good model for predicting the height of girls from their ages? Explain.
galben [10]
A plot of residuals (vertical deviations from the regression line) shows the errors or lack of fit, so it would indicate a good fit if the residuals are small, vs. over fit if they are large. Due to age related growth short pre teen, and a plateau after age 21, I would expect a linear regression would offer estimate age 5.5 years.
8 0
3 years ago
Prove that<br><img src="https://tex.z-dn.net/?f=%20%7B2%7D%5E%7B3%7D%20%20%5Ctimes%20%20%7B3%7D%5E%7B0%7D%20%20%2B%20%20%7B3%7D%
KonstantinChe [14]

Answer:

Step-by-step explanation:

Anything raise to the power zero is 1

Therefore,

               LHS\\\\ =2^3 \times 3^0 + 3^2 \times 2^0\\\\8 \times 1 + 9 \times 1 \\\\17

LHS = RHS

Hence Proved

5 0
2 years ago
A painter is painting a rectangular wall that measures 23.6 ft by 19.2 ft. Each gallon can of paint covers 200 square feet. What
ludmilkaskok [199]

Answer:

3 gallons

Step-by-step explanation:

Length of the rectangular wall = 23.6 feet

Width of the rectangular wall = 19.2 feet

Surface area of the wall = 23.6 × 19.2

                                        = 453.12 square feet

∵ 200 square feet of the wall is covered by the amount of paint = 1 gallon

∴ 1 square feet of the wall will be covered by the amount of paint = \frac{1}{200} gallons

∴ 453.12 square feet will require the amount of paint = \frac{453.12}{200}

                                                                                         = 2.2656 gallons

Therefore, minimum 3 gallons will be required to paint the wall.

5 0
3 years ago
Solve the equation <br> 4^(x+5)=16 (x-3)
Harrizon [31]
4 ⁽ˣ⁺⁵⁾ = 16 (x-3)

Simplify.

4x + 20 = 16x - 48

Subtract 16x from both sides, as well as subtracting 20 from both sides.

4x - 16x = -48 - 20

Add like terms.

-12x = -68

Divide both sides by -12

x = 5 2/3

~Hope I helped!~
8 0
2 years ago
One grocery clerk can stock a shelf in 20 min. A second clerk requires 45 min to stock the same shelf. How long would it take to
Lorico [155]

<u>Answer: </u>

clerk A and clerk B can simultaneously stock a shelf in \frac{180}{13} minutes

<u>Explanation:</u>

Let the first clerk be A and the second clerk be B

A can stock a shelf in 20 min

B can stock a shelf in 45 min

Consider the complete work to be W

A’s rate of stocking = \frac{W}{20} per minute

B’s rate of stocking = \frac{W}{45} per minute

When, A and B work simultaneously, rate of work done = \frac{W}{20}+\frac{W}{45}

Total work done simulatenously = \frac{W}{\frac{W}{20}+\frac{w}{45}}

=\frac{20 * 45}{20+45}

Therefore, clerk A and clerk B can simultaneously stock a shelf in \frac{180}{13} minutes

8 0
3 years ago
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