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Kaylis [27]
4 years ago
9

Please help me solve

Mathematics
1 answer:
masya89 [10]4 years ago
5 0

Answer:

f(3)= -2*3^2+8

= -10

the correct answer is -10

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9. The mean is defined as the
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Answer:

B. Average of the data set

Step-by-step explanation:

The mean is defined as the average of a data set and it's formula is

Mean = \frac{sum of observations}{number of observations}

8 0
3 years ago
In 1999, an estimated 850,000 U.S. students between the ages of 5 and 17 were being homeschooled. By 2014, the number of homesch
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3 years ago
Read 2 more answers
1. Eight is less than or equal to the quotient of a number and negative four.
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8≤x/4                                   8≤x/4 → 32≤x 
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hope this helps
5 0
4 years ago
Mary is 21 years old. Her age is 9 years more than 3 times Henry's age. Which equation can be used to determine x, Henry's age i
luda_lava [24]

Answer:

3x + 9 = 21

Step-by-step explanation:

Let Henry's age be x

Mary's age = 9 + 3x

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Can also be written as 3x + 9 = 21

4 0
2 years ago
F(x)=x+7<br> f(-1)<br> help!
DIA [1.3K]

Answer:

f(-1) = 6

Step-by-step explanation:

f(x) = x + 7 when x = -1

~Substitute

= (-1) + 7

~Simplify

= 6

Best of Luck!

7 0
3 years ago
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