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3 years ago

If f(x)=-4x-5 and g(x)= 3-x, what is g(-4) +f(1)? A.-10 B.7 C.-9 D.-2

Mathematics

1 answer:

Kisachek [45]3 years ago

7 0

Answer:

-2

Step-by-step explanation:

sustitue -4 into x for 3-x which would equal 7 because a negative times a negative equals positive. Then substitue 1 in for x in -4x-5 which would get you -9

give brainliest pls

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Find the angle, in degrees between 0 and 360∘, which intersects the unit circle at the point (−1/2,3/√2).

Vlada [557]

Answer:

it approx 103.2 degree

Step-by-step explanation:

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2 years ago

Help with num 9 please. thanks

Alik [6]

Answer:

See Below.

Step-by-step explanation:

We want to show that the function:

$f(x) = e^x - e^{-x}$

Increases for all values of x.

A function is increasing whenever its derivative is positive.

So, find the derivative of our function:

$\displaystyle f'(x) = \frac{d}{dx}\left[e^x - e^{-x}\right]$

Differentiate:

$\displaystyle f'(x) = e^x - (-e^{-x})$

Simplify:

$f'(x) = e^x+e^{-x}$

Since eˣ is always greater than zero and e⁻ˣ is also always greater than zero, f'(x) is always positive. Hence, the original function increases for all values of x.

8 0

3 years ago

I want help with this equation -1 + x = 8x - 8

Ilya [14]

Answer:

x=1

Step-by-step explanation:

To solve for x, we need to get x alone on one side of the equation.

Add one to each side of the equation. Subtract 8x from each side of the equation. Divide both sides by -7. You should get 1 as the answer.

$-1+x=8x-8\\x=8x-7\\-7x=-7\\x=1$

7 0

3 years ago

Read 2 more answers

Simplify: -10 - 90x + 6x - 60

antoniya [11.8K]

Answer:

- 84x - 70

Step-by-step explanation:

We want to combine like terms:

-10 - 90x + 6x - 60

We can see (-10) and (-60) are both regular constants so:

- 10 - 60 = - 70

Then (-90x) and (+ 6x):

6x - 90x = - 84x

- 84x - 70

4 0

3 years ago

At the Beijing Olympics,

eduard

It is 25% okay bruv

6 0

3 years ago