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3 years ago

Please help me or I will fail 8th grade

Mathematics

1 answer:

Kay [80]3 years ago

4 0

Answer:

A) x= -1/2. or x = 2 (can refer to photo)

B) Refer to photo

Forgot to write it, change general form to vertex form to find maximum point

C) Not really sure for this though but I'll try

Determine shape of graph

Determine x-intercepts of expression

Determine y-intercept

Determine vertex

Determine scale used

Draw diagram

Feel free to supplement it

Step-by-step explanation:

refer to photo

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Step-by-step explanation:

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Find all the zeroes of the equation. x4 – 6x2 – 7x – 6 = 0

NeX [460]

Answer:

-2, 3, -0.5 + 0.866i, -0.5 - 0.866i.

Step-by-step explanation:

As the last term is -6 , +/- 2 , +/- 3 are possible zeroes.

Try 2:-

(2)^4 - 6(2)^2 - 7(2) - 6 = -28 so 2 is not a zero.

3:-

(3)^4 - 6(3)^2 - 7(3) - 6 = 0 so 3 is a zero.

(-2)^4 - 6(-2)^2 - 7(-2) - 6 = 0 so -2 is also a zero.

Divide the function by (x +2)(x - 3), that is x^2 - x - 6

gives x^2 + x + 1

x^2 + x + 1

So we have x^2 + x + 1 = 0

x = [-1 +/- √(1^1 - 4*1*1)] / 2

= -1 + √(-3) / 2 , - 1 - √(-3) / 2.

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3 years ago

The humidity dropped an average of 1 1/3% each hour over the last six hours. What was the total change in humidity?

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3 years ago

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Setler79 [48]

Answer:

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Step-by-step explanation:

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