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Andru [333]
3 years ago
8

Need help plzzzz 5(a+b)-a-b

Mathematics
1 answer:
finlep [7]3 years ago
5 0
Distribute the 5 into the polynomial to get 5a + 5b - a - b. Combine like terms to get 4a + 4b, your answer. 
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if a right triangle has lengths 99 inches, 101 inches and 20 inches, what is the length of the hypotenuse
Anna35 [415]

Answer:

The hypotenuse is 10201

Step-by-step explanation:

20^2+99^2=101^2

400+9801=10201

10201=10201

5 0
2 years ago
Which of the following best describes the equation below? y=2/5x-12 A. neither linear nor nonlinear B. linear C. both linear and
patriot [66]

Answer:

B. Linear

Step-by-step explanation:

7 0
3 years ago
Here are the prices of five new pairs of hockey skates, in dollars: 59, 60, 65, 99, 175. The standard deviation is about $49. If
Phoenix [80]

Answer:

The standard deviation of the new data will be increased as compared to the previous standard deviation of the data.

Step-by-step explanation:

The prices are given to be : 59, 60, 65, 99, 175

Standard deviation = $49

Now, if we add or subtract any constant value to each of the terms then the standard deviation remains unchanged.

But, we add a new price in the given data that is $450

\text{New standard deviation = }\sqrt{\frac{\sum (\bar{x}-x_i)^2}{n}}\\\\\bar{x}\text{ is the mean of data after adding 450 and}\\x_i\text{ are the price values of the sample data}

Hence, Standard deviation is calculated to be 139.5

Therefore, the standard deviation of the new data will be increased as compared to the previous standard deviation of the data.

6 0
3 years ago
Read 2 more answers
4. The table below shows the cost of pencils at the local discount store. Cost of Pencils Number of Total Cost Pencils 10 $1.25
fomenos

Answer:

1.25 / 10 = 0.125

0.125 is about 0.13

13 cents or $0.13

4 0
2 years ago
HELP PLEASE I honestly need help please help
eduard

9514 1404 393

Answer:

  5.  x = 160; y = 20

  6.  h = 125°; g = i = 55°

Step-by-step explanation:

Vertical angles are found on opposite sides of a point where lines cross. Each angle is formed from rays opposite those of the other angle. Vertical angles are congruent.

5. x° and 160° are vertical angles: x° = 160°

  y° and 20° are vertical angles: y° = 20°

__

6. h° and 125° are vertical angles: h° = 125°

The angles g° and 125° form a "linear pair" so total 180°.

  g° = 180° -125° = 55°

  g° and i° are vertical angles: g° = i° = 55°

4 0
3 years ago
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