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tester [92]
3 years ago
6

What is the mean of the data set? {11, 14, 15, 16, 16, 18, 20, 20, 22, 22} A. 11 B. 15.6 C. 17.4 D 18​

Mathematics
1 answer:
Mademuasel [1]3 years ago
4 0

Answer:

C. 17.4

Step-by-step explanation:

add all the numbers and then divide  

11 + 14 + 15 + 16 + 16 + 18 + 20 + 20 + 22 + 22 = 174

then divide by the amount of numbers there is which is 10.

174/10 = 17.4

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What is the slope of a line parallel to the line whose equation is: -2x + y = - 7?
Lostsunrise [7]

Answer:

2

Step-by-step explanation:

-2x+y=-7

Take the -2x and put it on the other side of the equation by changing the sign

y=-7+2x

Now put it in y intecpet form by putting the 2x first

y=2x-7

Slope is the number before the x.

so 2

Now knowing that parallel lines always have the same slope the answer is 2

7 0
3 years ago
Plz!!!!!!!!!!!!!!!!!!help!!!!!!!!!!!!!!!!
kodGreya [7K]
With a reflection across the y-axis followed by a translation of one unit to the right and three units up, and a dialation centered at the origin with a scale factor of 2
6 0
3 years ago
Write your answer in scientific notation. (3.2 x 10^-2) + (3.2 x 10^-4) + (2.8 x 10^-2)
mars1129 [50]
3.2 x 10^-2 + 3.2 x 10^-4 + 2.8 x 10^-2
= 3.2 + 2.8
= 6 x 10^-2 + 3.2 x 10^-4
Convert 3.2 into fraction which is 16/5
And express with a positive exponent using “a^-n = 1/a^n” therefore
= 6 x 10^-2 + 16/5 x 1/10^4
= 6 x 1/10^2 + 16/5 x 10^4
= 6 x 1/100 + 16/5 x 10,000
Reduce 6 and 100 with the GCF ‘2’
Then reduce 16 and 10,000 with 16
= 3 x 1/50 + 1/5 x 625
Multiply
= 3/50 + 1/3125
Then add
The answer is
= 377/6250
= 0.06032
3 0
3 years ago
Suppose a car dealer receives a profit of $500 for each mid-sized car m sold and $750 for each sport-utility vehicle s sold. The
valkas [14]

Answer:

\boxed{\text{Four}}

Step-by-step explanation:

            500m = profit on mid-sized cars

             750s = profit on SUVs

500m + 750s = total profit  

You have two conditions:

(1) 500m + 750s ≥ 3500

(2)                   m ≥ 2s

Let s = 2

Check condition (1)

500m + 750 × 2 ≥ 3500

   500m + 1500 ≥ 3500

               500m ≥ 2000

                      m ≥ 4

Check condition (2)

(2) m ≥ 2 × 2

      m ≥ 4

\text{The dealer must sell }\boxed{\textbf{four}}\text{ mid-sized vehicles per month}}

Check:

500 × 4 + 750 × 2 ≥ 3500          4 ≥ 2 × 2

       2000 + 1500 ≥ 3500          4 ≥ 4

                   3500 ≥ 3500

OK.

3 0
3 years ago
Read 2 more answers
A rectangle has a length of x + 5 and a
Zinaida [17]

Answer:

6x - 8

Step-by-step explanation:

P = 2(x + 5) + 2(2x - 9)\\P = 2x + 10 + 4x - 18\\P = 6x - 8

4 0
3 years ago
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