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sergeinik [125]
3 years ago
13

If f x = 7x 2 − 4x − 10, then f −3 =?

Mathematics
1 answer:
Schach [20]3 years ago
7 0

Answer:

f(x)=xy3 -4xy2 -7x+10

Step-by-step explanation:

the xy3 and xy2 means x to the 3rd power and x to the second power

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What is the quotient of 59,584 ÷ 14?
zloy xaker [14]

Answer:

B

Step-by-step explanation:

We can divide using the calculator by entering in 59, 584 first followed by 14 before the division sign.

We can also perform long division:

       __<u>4256_</u>____

 14  |   59, 584

        <u>  -56__</u>__

              35

           <u>   -28____</u>

               78

             <u> -70_</u>___

                 84

             <u>   -84_</u>___

                   0

3 0
3 years ago
15. 3x – 4y = -1<br> 5x + 2y = 7
never [62]

Answer:

x = 1, y = 1

Step-by-step explanation:

3x - 4y = -1

5x + 2y = 7

If we multiply the whole second equation by 2, we get:

10x + 4y = 14

Adding this to the first equation:

10x + 4y + 3x - 4y = 14 - 1

13x = 13

x = 1

Applying this to the second equation:

5 (1) + 2y = 7

2y = 2

y = 1

8 0
3 years ago
On a scale drawing with a scale of 1/80, the height of a building is 9.75 inches. How tall is the actual building?
zmey [24]
The actual building is 780 inches
3 0
3 years ago
to get to school Jenny decide to ride the school double decker bus it's a 30-minute ride the bus has a total of 20 rows of seats
N76 [4]
I think it’s 80 kids in all
5 0
3 years ago
Add the polynomials.<br> (3x3 - 3x2 - 4x + 9) +(6x2 +7x - 5)
bixtya [17]

Answer:

3x +19

Step-by-step explanation:

(9-6-4x+9)+(12+7x-5)

(12-4x)+(7+7x)

3x+19

6 0
2 years ago
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