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Makovka662 [10]

3 years ago

10

A battery was charged. When the changing began, it was 23 percent full. After 30 minutes of charging, the battery was 89 percent

full? How long did it take to fully charge in minutes?

1 answer:

Karo-lina-s [1.5K]3 years ago

5 0

Attached the solution and work.

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The value of 32cos85° is

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2.78 or 3 is the value

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The triangles at right are similar what is the value of x

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180-95-58=27

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3 years ago

Please. Answer Fast! Use composition to determine if G(x) or H(x) is the inverse of F(x) for the

s344n2d4d5 [400]

Answer:

A. H(x) is an inverse of F(x)

Step-by-step explanation:

The given functions are:

$F(x)=\sqrt{x-2}$

$G(x)=(x-2)^2$

$H(x)=x^2+2$

We compose F(x) and G(x) to get:

$(F\circ G)(x)=F(G(x))$

$(F\circ G)(x)=F((x-2)^2)$

$(F\circ G)(x)=\sqrt{(x-2)^2-2}$

$(F\circ G)(x)=\sqrt{x^2-4x+4-2}$

$(F\circ G)(x)=\sqrt{x^2-4x+2}$

$(F\circ G)(x)\ne x$

Hence G(x) is not an inverse of F(x).

We now compose H(x) and G(x).

$(F\circ H)(x)=F(H(x))$

$(F\circ H)(x)=F(x^2+2)$

$(F\circ H)(x)=\sqrt{x^2+2-2}$

We simplify to get:

$(F\circ H)(x)=\sqrt{x^2}$

$(F\circ H)(x)=x$

Since $(F\circ H)(x)=x$ , H(x) is an inverse of F(x)

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3 years ago

Evaluate the expression: 2x + 7 - 3x, when x = 2

Galina-37 [17]

2(2)+7-3(2)=
4+7-6= 5
your answer is 5

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