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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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How many 3 digit palindromes are divisible by 9?
ludmilkaskok [199]

Interesting problem.

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For a number to be divisible by 9, the sum of the digits must add up to a multiple of 9, such as 0, 9, 18, 27, etc.


We can now form a table of the possible 3-digit palindromes divisible by 9, starting with the first/last digits (=A), and finding the middle digit (=B).  The number is therefore represented by the pattern ABA.

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For each value of A (from 1 to 9) we can only find one value of B that makes the number divisible by 9.   Thus we can only find nine such numbers, with A equal to 1 to 9.

Here's a list of the numbers

A   B   number

1    7    171

2   5    252

3   3    333

4   1     414

5   8    585

6   6    666

7   4    747

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3 years ago
HELP DUE IN 10 MINUTES!!
Pavlova-9 [17]

Answer:

x intercept = 26

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Step-by-step explanation:

n/a

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