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Bad White [126]
3 years ago
6

I rlly need help ill give u brainliest​

Mathematics
1 answer:
REY [17]3 years ago
6 0

Answer:

1728 for A

7290000 for B

Step-by-step explanation:

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How many times can 8 into 12
Lisa [10]
8 can go into 12 only once.
6 0
3 years ago
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Simplify each expression using order
Ymorist [56]

Answer:

Step-by-step explanation:

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3 years ago
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susan determines a line of best fit for the data in the table to be y=42x-55. What y-value would you predict to correspond with
Mademuasel [1]
Plug in 12 for x:
y=42(12)-55
y=504-12
y=492

Hope that helps.
6 0
3 years ago
Can someone help me with this please!! I’ll give brainliest plus free points
IRINA_888 [86]

Answer:

The answer to your question is:  x₁ = 9     ;   x₂ = -2, third option

Step-by-step explanation:

The excluded values are those that make the denominator equal to zero.

To find the excluded values, just factor the denominator and equal to zero to find the roots.

Process

                                                               

                            x² - 7x - 18

- Find to numbers that added gives -7 and multiply -18.

- These numbers are -9 and + 2, because

           -9 + 2 = -7

and    -9 x 2 = -18

                          (x - 9) (x + 2) = 0

                          x₁  - 9 = 0               x₂ + 2 = 0

                         x₁ = 9                      x₂ = -2

Test

            (9)² - 7(9) - 18                      (-2)² - 7(-2) - 18

            81 - 63 - 18                          4 + 14 - 18

            81 - 81                                  18 - 18

            0                                           0

5 0
3 years ago
Read 2 more answers
A direct variation function contains the points (–9, –3) and (–12, –4). Which equation represents the function?
vladimir1956 [14]

Answer: third option.

Step-by-step explanation:

By definition, a direct variation function has the form shown below:

y=kx

Where k is a constant.

Then, knowing the given points, you can calculate k with the formula for calculate the slope of a line:

m=\frac{y_2-y_1}{x_2-x_1}=\frac{-4-(-3)}{-12-(-9)}=\frac{1}{3}

Substituting k into  y=kx, you obtain:

y=\frac{1}{3}x\\\\y=\frac{x}{3}

4 0
3 years ago
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