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3 years ago

F(-4) if f(x) =x to the power of 2 +8

Mathematics

1 answer:

Rufina [12.5K]3 years ago

7 0

10 :) I had this, EZ now :)

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Subtract these polynomials.

zvonat [6]

Answer: A

Explanation:

(6x^2 - x + 8) - (x^2 + 2)
6x^2 - x + 8 - x^2 - 2
= 5x^2 - x + 6

6 0

3 years ago

Lets see who is smart lol

Simora [160]

9514 1404 393

Answer:

$\square\quad{y=\dfrac{1}{2}x+4}\\\\\square\quad{\dfrac{y-5}{x-2}=\dfrac{1}{2}}$

Step-by-step explanation:

The slope of a line is the same everywhere, so an equation can be written making use of that fact.

$\dfrac{y-y_1}{x-x_1}=\dfrac{y_2-y_1}{x_2-x_1}\\\\\dfrac{y-5}{x-2}=\dfrac{7-5}{6-2}=\dfrac{2}{4}\\\\\boxed{\dfrac{y-5}{x-2}=\dfrac{1}{2}}$

Cross-multiplying gives ...

2(y -5) = x -2

2y -10 = x -2 . . . eliminate parentheses

2y = x +8 . . . . . . . add 10; next, divide by 2

$\boxed{y=\dfrac{1}{2}x+4}$

These equations match choices B and D.

6 0

3 years ago

Sam has sewn three square tablecloths of different sizes. He determines the length of the diagonal of each square tablecloth.

Reika [66]

Answer:

Step-by-step explanation:

the square root of 12 is 3.4 so the answer is 3.4

5 0

2 years ago

X²+7x+10=0 a=1, b=7, c=10 b²-4ac=(7)²-4(1) (10) =49-4(10) =49-40 =9

Sloan [31]

Answer:

X=5

X=2

Step-by-step explanation:

8 0

3 years ago

How do i find the area of this composite figure?

diamong [38]

To find the area of a composite figure, separate the figure into simpler shapes whose area can be found. Then add the areas together. Be sure than none of the simpler figures have overlapping areas

6 0

3 years ago

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