3 years ago

Erin records the following temperatures (in degrees

Mathematics

1 answer:

Sever21 [200]3 years ago

6 0

Answer:

I think the correct answer should be B

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Answer true or false for the numbers 18 and 30.<br> A common factor is 9.<br> O True<br> O False

bonufazy [111]

Answer:

false

Step-by-step explanation:

9 does not go into 30

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3 years ago

What are the solutions of 12 – x2 = 0?

Kruka [31]

Answer:

x = ± 2 $\sqrt{3}$

Step-by-step explanation:

Given

12 - x² = 0 ( add x² to both sides )

12 = x² or

x² = 12 ( take the square root of both sides )

x = ± $\sqrt{12}$

= ± $\sqrt{4(3)}$ = ± 2 $\sqrt{3}$

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If c(x)= 5/x-2 and d(x) = x + 3, what is the domain of (cd)(x)?

Nataly [62]

$(fg)(x)=f(x)\cdot g(x)\\\\\text{We have}\ c(x)=\dfrac{5}{x-2}\ \text{and}\ d(x)=x+3.\ \text{Substitute}\\\\(cd)(x)=\dfrac{5}{x-2}\cdot(x+3)=\dfrac{5(x+3)}{x-2}\\\\\text{Domain:}\\\\\text{The denominator must be different than zero. Therefore}\\\\x-2\neq0\to x\neq2\\\\Answer:\ \text{Domain is the set of all real numbers except 2}\to D=\mathbb{R}-\{2\}$

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3 years ago

Reyna runs a textile company that manufactures T-shirts. The profit, p, made by the company is modeled by the function p=s^2+9s-

Elza [17]

S^2 + 9s - 142 > 2000
s^2 + 9s - 142 - 2000 > 0
s^2 + 9s - 2142 > 0
(s-42)(s+51) > 0

s - 42 > 0
s > 42

s + 51 > 0
s > -51.......will not work

answer is : s > 42

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Lemur [1.5K]

Answer:

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Step-by-step explanation:

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