1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Serhud [2]
2 years ago
12

If f (x) = x2 + 3x – 2 , find f (-2). PLEASE HELP!

Mathematics
1 answer:
stira [4]2 years ago
8 0

Answer:

f(- 2) = - 4

Step-by-step explanation:

Step-by-step explanation:

To evaluate f(- 2) substitute x = - 2 into f(x) , that is

f(- 2) = (- 2)² + 3(- 2) - 2 = 4 - 6 - 2 = - 4

You might be interested in
Geometry picture added
Nikitich [7]
X and Z equal 72
Y equals 108.

This is because y and 108° are vertex angles meaning they are both equal to each other. X is 72 because it’s form a supplementary angle with 108°. So what I did to find x is I subtracted 108 from 180 to get 72°. Then I know x and z are vertex angles meaning that z is also equal to 72°
5 0
3 years ago
What is the length of arc QR? <br> A. 1/3 π<br> B. 10/3 π<br> C. 5/3 π<br> D. 20/3 π
podryga [215]
D. 20/3 I think it’s the answe
3 0
3 years ago
In exercises 1 and 2, Find the value of x.
Kruka [31]

From the given picture, we can see that 2 sides are congruen, then the given triangle is an isosceles triangle. In this triangle the base angles are congruent, so we can draw the following picture:

Now, since interior angles of any triangle add up to 180 degrees, we have

x+\frac{x}{2}+\frac{x}{2}=180

By combining similar terms, we get

\begin{gathered} \frac{4}{2}x=180 \\ 2x=180 \end{gathered}

Then, x is given as

\begin{gathered} x=\frac{180}{2} \\ x=90 \end{gathered}

Therefore, the answer is x=90 degrees

4 0
1 year ago
which shows one way to determine the factors of x^3 – 12x^2 – 2x 24 by grouping?a. x(x^2 – 12) 2(x2 – 12)b. x(x^2 – 12) – 2(x2 –
BaLLatris [955]
Hello,

x^3-12x²-2x+24=x²(x-12)-2(x-12)=(x-12)(x²-2)
Answer D

6 0
3 years ago
Read 2 more answers
The value of savings account can be modeled by the function S(x) = 5, 000 * (1.025) ^ (0.7x) x is the number of years 1980. What
garik1379 [7]

Answer:

The approximate growth rate of the savings account is 2.5%

Step-by-step explanation:

Given the the function S(x) = 5, 000 * (1.025) ^ (0.7x)

From the function, we can see that part:  (1.025). It presents for the growth factor or rate with the formula as:

(1 + r)  where r is rate

So we have:

(1 + r) = 1.025

<=> r = 1.025  -1

<=> r = 0.025

In pecentage, we have the rare: 0.025 *100% = 2.5%

So the approximate growth rate of the savings account is 2.5%

8 0
3 years ago
Other questions:
  • Draw a graph of 2x - 3y = 6​
    10·1 answer
  • What equation results from completing the square and then factoring? x^2-8x=39
    13·2 answers
  • The expression below represents the number of trees planted by an environmental agency after t years.
    6·2 answers
  • If x varies directly as p, and x=48 when p=8, find x when p is 15.
    7·1 answer
  • A study was conducted of pleas made by 1 comma 0.32 criminals. Among those​ criminals, 953 plead​ guilty, and 393 of them were s
    14·1 answer
  • Which expression represent the distance between the point graphed below
    11·1 answer
  • The ratio 2 1/2 divided by 9/4 is equivalent to the unit rate of 10/9. true or false?
    9·2 answers
  • PLEASEEE I NEED HELP
    12·1 answer
  • Solve the system of equations.<br> 8x + 5y = 24<br> y = -4x<br> x =<br> y =
    14·1 answer
  • Find the solution to the system by graphing
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!