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11Alexandr11 [23.1K]
2 years ago
8

HELP PLS THIS IS WORTH 50 POINTS ON MY EXAM x^2 - 64 Find the factored expression

Mathematics
1 answer:
Alex2 years ago
7 0

Answer:

(x-8)(x+8)

Step-by-step explanation:

Difference of squares

Basically take the square root of 64 and place the answer into the two sets of parenthesis

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If the factors of a quadratic function are (x + 2) and (x − 9), what are the x-intercepts of the function?
Zielflug [23.3K]

Answer: D. (-2,0) and (9,0)

Step-by-step explanation:

When you equate the factors to 0 you get

(X+2) = 0

X = -2

(X-9) = 0

X= 9

Here the Y value is 0 as you find the factors of x when the Y value is 0.

So the answer is (-2,0) and (9,0)

8 0
3 years ago
A recipe for oatmeal raisin cookies calls for 1 2/3 cups of flour to make 4 dozen cookies .how many cups of flour are needed to
erastovalidia [21]
2 \frac{1}{2}
4 0
3 years ago
What is the sum of the probability of drawing a green marble and the probability of not drawing a green marble?
andrey2020 [161]

Yo sup??

the answer is 1 because

P(E)+P(E')=1

where E is the event and

E' is the complement of the event

Hope this helps

3 0
3 years ago
Determine the surface area of this cone if the radius is 4 cm and the height is 12 cm . Round your answer to the nearest tenth .
maria [59]
Base Surface Area = π×42
= 50.265482457437 inches2
Lateral Surface Area = π×4×√42 + 4.72440944881892
= 77.789838023204 inches2
Total Surface Area = 128.05532048064 inches2


Or in square centimeters:

Base Surface Area = π×10.162
= 324.2927866224 centimeters2
Lateral Surface Area = π×10.16×√10.162 + 122
= 501.8689189905 centimeters2
Total Surface Area = 826.1617056129 centimeters2
8 0
3 years ago
Over the summer, for every 14 Okra seeds Dana planted, 9 plants grew. If he planted 182 seeds, how many grew into plants?
vova2212 [387]
Simple...

you have: For every 14 seeds that Okra seeds Dana planted 9 of them grew; if he planted 182 seeds..how many grew?

Set up an equation...

\frac{9}{14} = \frac{x}{182}

Cross multiply....

14*x=14x

9*182=1638

14x=1638

\frac{14x}{14} = \frac{1638}{14} =117


x=117

This means that, for 182 seeds planted, 117 of them grew to be plants.

Thus, your answer.
3 0
3 years ago
Read 2 more answers
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