3 years ago

I need help with this. I need to find both A and B, I’m just lost at this point

Mathematics

1 answer:

Alex787 [66]3 years ago

8 0

They both look to be at 100 degrees

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I know the answer is C. but I need to know how to solve it!

otez555 [7]

Yes you are right it's C)
Notice that f(-2) = (-2)³ +2( - 2)² + 4(-2) + 8 =0
Then x³+2x²+4x+8 is divisible by (x+2)
Perform this division & you will get:

x³+2x²+4x+8 = (x+2)(x²+4)
The root of (x+2) is the value that render it nil, that is x=-2
The root of (x²+4) are imaginary (not real) because
x²+4 =0 ==> x² = -4 & x=√-4 or x= 2i (nor real).
Hope you understood the reasoning

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3 years ago

Jeans are $20 for 2 pairs. Kerry spent $40 on jeans. how many pairs did she buy?

timurjin [86]

Answer:

Step-by-step explanation:

Your answer would be 4 because if she spent $20 for 2 pairs you would then know that it would be $10 for 1 pair so it would be $40 for 4 pairs therefor Kerry bought 4 pairs of jeans.Hope it helps you!

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2 years ago

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A graph is shown below:

Alecsey [184]

10 and so what is the

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3 years ago

Round to the nearest thousandth:9.4048

vesna_86 [32]

Answer:

9.405

Step-by-step explanation:

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3 years ago

1. Part A: Use the properties of exponents to explain why 64^1/2 is called the square root of 64.

Dmitriy789 [7]

A: When you multiply two numbers, their exponents add.
So, $64^{\frac{1}{2}} * 64^{\frac{1}{2}} = 64^{\frac{1}{2} + \frac{1}{2}} = 64^{1} = 64$

Since 64^1/2 multiplied by itself is 64, then it is the square root of 64.

B: The area is irrational. 7 * √7 is irrational.

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3 years ago

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