3 years ago

If f(x) = 3x2 - x, find f(-2). 10 14 38

2 answers:

8 0

'Ello.

Just plug in the values.

f(-2) = 3(-2)^2 - (-2) {Equation}
f(-2) = 3(4) - (-2) {Multiply}
f(-2) = 12 - (-2) {The signs become a positive; add}
f(-2) = 14 {Answer}

You're welcome.

mojhsa [17]3 years ago

6 0

f(x) = 3x^2-x

F(-2)

replace x with -2

3(-2)^2 - -2 =

3*4 +2 = 14

Answer is 14

You might be interested in

Don’t skip this question i have a test plz answer

Gwar [14]

Bottle A-7
Bottle B-4

6 0

3 years ago

Read 2 more answers

Which symbol could be written in both circles in order to

SIZIF [17.4K]

≥ can be written in both the circles

3 0

3 years ago

The flight path of a plane is a straight line from city J J to city K K. The roads from city J J to city K K take the long way a

Vika [28.1K]

Answer:

58.1 degrees

Step-by-step explanation:

Given the following

JK = 9.4miles (towards south) negative y axis

If the move 15.1 miles towards east (that will be towards the positive x axis)

Using the SOH CAH TOA identity

opposite= 15.1 miles(side facing m<J)

adjacent= JK = 9.4miles

tan theta = opposite/adjacent

tan m<J = 15.1/9.4

tan m<J = 1.6063

m<J = arctan (1.6063)

m<J = 58.09 degrees

Hence the measure of m<J to the nearest tenth is 58.1 degrees

4 0

3 years ago

Multiply. Express your answer as a fraction in<br> Simplest form<br> 8.33 x V 144

adell [148]

Answer

65-44.78>4

Step-by-step explanation

4 1

3 years ago

Read 2 more answers

Does anyone know how to do this?? steps are helpful but not necessary

aniked [119]

Answer:

C. $\frac{2(x+16)}{x+4}$

Step-by-step explanation:

We want fg of x, so first we have to multiply f(x) times g(x).

$\frac{x+16}{x} * \frac{2x}{x+4}$

$\frac{(x+16)2x}{x(x+4)}$

$\frac{2x^{2}+32x}{x^{2}+4x}$

We can cancel out an x from every term.

$\frac{2x+32}{x+4}$

Let's rewind a little to get this into one of the answer choices.

$\frac{2(x+16)}{x+4}$ is our answer.

6 0

3 years ago