3 years ago

Write a inequality please help. a number is at least -43

Mathematics

1 answer:

kondor19780726 [428]3 years ago

5 0

Answer:

x≥ -43

Step-by-step explanation:

at least means greater than or equal to

Let x be the unknown number

x≥ -43

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Answer:

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Step-by-step explanation:

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3 years ago

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In your case, you know that the polynomial is divisible by $(x+a)=(x-(-a))$ , so $-a$ is a solution.

Let's evaluate $p(-a)$ and set it to zero:

$2(-a)^2+2a(-a)+5(-a)+10 = 0 \iff 2a^2-2a^2-5a+10=0 \iff -5a+10 = 0 \iff a = 2$

We can check the answer: if $a=2$ the polynomial becomes

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And we're claiming that $-a=-2$ is a root of this polynomial:

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3 years ago

Please please please help me with this...

dlinn [17]

Answer:

It's option d.

Step-by-step explanation:

The line y = x + 2 has domain x < 2 (because of the clear circle.)

The lines y = x + 1 has domain x ≥ 2. ( because of the filled circle).

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3 years ago