3 years ago

Simplify 2.8d-6+3.8-3.1d

Mathematics

1 answer:

densk [106]3 years ago

6 0

Answer:

-0.3d-2.2

Step-by-step explanation:

2.8d-6+3.8-3.1d

Combine like terms

2.8d-3.1d -6+3.8

-0.3d-2.2

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If the diameter of a cylinder is 18 inches, the radius of the cylinder is 9 inches.

Afina-wow [57]

Answer:

True

Step-by-step explanation:

A cylinder has two circles as its bases, and the diameter formula is:

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3 years ago

Determine the domain of the function (fog) (x) where f(x) = 3x-1/x-4 and g(x)=x+1/x

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Answer:

$(-\infty,0)\cup(0, \frac{1}{3})\cup (\frac{1}{3},\infty)$

Step-by-step explanation:

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We now composed the two functions to find:

$(f\circ g)(x)=f(g(x))$

$\implies (f\circ g)(x)=f(\frac{x+1}{x})$

$\implies (f\circ g)(x)=\frac{3(\frac{x+1}{x})+1}{\frac{x+1}{x}-4}$

$\implies (f\circ g)(x)=\frac{4x+3}{1-3x}$

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We write this in interval notation as:

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We need to be cautious here as x=0 is not in the domain of g(x).

Therefore the domain of $(f\circ g)(x)$ is

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3 years ago

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Answer:

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Step-by-step explanation:

3 and -3 are additive inverses since 3 + (-3) = 0. -3 is the additive inverse of 3.

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2 years ago

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