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lesya692 [45]
3 years ago
15

Find the x-coordinate of the vertex, y-coordinate of the vertex, and the x-intercepts.

Mathematics
1 answer:
galina1969 [7]3 years ago
3 0

Answer:

X=-1

Y=-9

Step-by-step explanation:

x^2+2x-8

x^2+2x +1 =8+1

(x+1)-9

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Answer:

1) Total outcomes of 1 time = 16

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Step-by-step explanation:

<h3>1) Total outcomes</h3>

If both spinners are spinning together, and are labelled from 1 to 4, the the outcome are:

{(1, 1), (1, 2), (1, 3), (1, 4), (2, 1), (2, 2), (2, 3), (2, 4), (3, 1), (3, 2), (3, 3), (3, 4), (4, 1), (4, 2), (4, 3), (4, 4)}

We can count them to find total no. of outcomes

Total outcomes = 16

<h3>2) When Difference = 1</h3>

Following combinations have a difference of 1

{(1, 2), (2, 1), (2, 3), (3, 2), (3, 4), (4, 3)}

n = 6

Probability of getting such combination is: 6/16

How many times Harvey would get such a combination out of 96 times?

\frac{6}{16}\cdot96=36

<h3>3) When Difference = 0</h3>

Following combinations have a difference of 0

{(1, 1), (2, 2), (3, 3), (4, 4)}

n=4

Probability of getting such combination is: 4/16

How many times Harvey would get such a combination out of 96 times?

\frac{4}{16}\cdot96=24

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