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3 years ago

Can somebody help me please? What is the range of the function f(x)=3/4|x|-3?

Mathematics

2 answers:

Cloud [144]3 years ago

5 0

The last option, #4, because the least amount is -3, including -3 itself and the highest one is infinity so everything greater than -3

masha68 [24]3 years ago

4 0

That last choice because just by looking at the graph, you can see the answer.since it’s a range, look at the y values of the graph. It would be all all real numbers greater or qual to -3.

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4 years ago

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Liono4ka [1.6K]

Answer:

-12

Step-by-step explanation:

Convert the mixed number to an improper fraction.

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To divide, just multiply by the reciprocal.

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Now you can multiply straight across.

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And simplify.

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3 years ago

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2 years ago

SOLVE x^4 − 15x^2 − 16 = 0 <br> What are the roots of the equation?

kakasveta [241]

Answer:

roots : 4, -4, i, -i

Step-by-step explanation:

This gets a bit tricky.

We have to substitude x^2 as u in this problem.

Now to rewrite x^4 − 15x^2 − 16 = 0 with u, we get

u^2 - 15u - 16 = 0

( u - 16) (u + 1)

U = 16

U = -1

<em>This is not the end of the problem. </em>

Now we have to substitute x^2 back to u.

x^2 = 16 --> we get the roots 4 and -4

x^2 = -1 --> we get the roots i and -i

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2 years ago