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
Ira Lisetskai [31]
3 years ago
5

If f(x) = 3x^2+x-2, then f(-2) =

Mathematics
1 answer:
Olin [163]3 years ago
3 0

Answer:

f(-2) =8

Step-by-step explanation:

f(x) = 3x^2+x-2

Let x = -2

f(-2) = 3 * (-2)^2 + (-2) -2

       = 3(4) -2 -2

        =12 -2-2

         =10 -2

         =8

You might be interested in
Write an equation for slope 3, (1,2)
stellarik [79]
Start by y-k=m(x-h)
m= 3
k=2
h=1
so y-2=3(x-1)
distribute
y=3x-3+2
final answer: y=3x-1
3 0
4 years ago
What is the slope of the line that is perpendicular to a line whose equation 3y=-4x+2?
Zarrin [17]
The slopes of lines perpendicular to each other are opposite reciprocals. So, if you are given that the slope of a line is 3 and need to find the slope of a line perpendicular to that line, you'd flip that number around and negate it, leaving you with -1/3.

To find the slope of the given line, first get it into slope-intercept form (y - mx + b, where m is the slope and b is the y-intercept).

    3y = -4x + 2
    y = -4/3x + 2/3

The slope is -4/3. To find the slope of a perpendicular line, find its opposite reciprocal. It is 3/4.

Answer:
3/4 (the first option)
6 0
3 years ago
I NEED HELP ASAP!!
S_A_V [24]
(1,-1)
(-4,2)
(-2,1)
I believe these will work
4 0
3 years ago
Katie and her brother are both writing a report. Katie write 7/8 of her report and her brother wrote 3/7 of his report. What is
skad [1K]

Answer:

Answer is 25/56

Step-by-step explanation:

Given that

Katie and her brother are both writing a report. Katie write 7/8 of her report and her brother wrote 3/7 of his report

TO compare these two fractions we have to make both of them have the same denominator.

We find that as such the two fractions have denominators as 7 and 8 and hence Least common multiple is 56

LEt us make equivalent fractions

7/8 = 49/56

3/7=24/56

Difference i.e. Katie wrote more than her brother = 49/56-24/56

=25/56

4 0
3 years ago
ILL MARK BRAINLIEST TO FIRST CORRECT ANSWER!! -8= c/-10
stira [4]

Answer:

c = 80:)

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Which is greater 5 8/10 or 58/10
    15·1 answer
  • Formulating and solving inverse variation functions
    15·1 answer
  • I need help on this
    6·1 answer
  • When a number is added to 1/5 of itself, the result is 24. The equation that models this problem is n + 1/5n = 24. What is the v
    13·2 answers
  • What is the ratio 81:27 in simplest form
    10·1 answer
  • What is the IQR for the box plot below?<br> (Interquartile range)
    13·2 answers
  • Lines a and b are perpendicular. The slope of the line is given. What is the slope of line b?
    11·1 answer
  • The table below shows the results when 3 coins were tossed simultaneously 30 times. The number of tails appearing was
    10·1 answer
  • Solve the following equation for n: <br><br>8 + n = 16.<br><br>​
    15·2 answers
  • In the accompanying diagram, which is an
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!