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
juin [17]
3 years ago
5

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

Mathematics
2 answers:
jonny [76]3 years ago
7 0
F(x) = 2x^2 - x
if x=-3

f(-3) = (2*(-3)^2) - (-3)
f(-3) = (2*9) + 3
f(-3) = 18 + 3
f(-3) = 21
Sergio [31]3 years ago
7 0

Answer: 21

Step-by-step explanation: because i got it right

You might be interested in
Solve the following inequality:<br><br> 176 + 5x ≤ 200
Flauer [41]

Answer:

Step-by-step explanation:

176+5x≤ 200

-176        -176

5x≤ 24

----------

5        5

x≤ 4.8=24/5

8 0
3 years ago
p: If two out of five people use the subway every day, then the probability of a person using the subway is 0.4.
Alexandra [31]

2 divided by 5 = 0.4

 so that statement is true.

3 0
3 years ago
Read 2 more answers
If square root of 5 - x = 4 , then x=
Arada [10]
I'm guessing here, but I may be right. The answer is x=0
If I'm wrong please correct me!!
8 0
3 years ago
Read 2 more answers
Sophia went to Target to buy decorations for her dinner
anzhelika [568]

Answer:

25% off coupon

6 0
3 years ago
Doctors are interested in seeing if lifting weights to alleviate back pain is effective. Twenty five volunteers are asked to ran
goldenfox [79]

Answer:

Comparing means from dependent samples.

Step-by-step explanation:

In the scenario described above, the 25 sampled individuals were used to test the effect of weightlifting on alleviating back pain. The samples used were not changed nor altered during the study as the same subjects who were tested to measure their level of pain before lifting weight were the same group subjected to the actual weight lifting test and again had their level of pain tested. Since only one group was involved in the study ( a single group was tested on neutral and actual treatment). Hence, the study used dependent samples to compare the average level of pain.

4 0
3 years ago
Other questions:
  • Is y=8.5x a proportional relationship? If so, why? If not, why?
    12·1 answer
  • What is the square root of 79
    12·2 answers
  • A bakery makes 480 pizzas and 2400 rolls each day
    12·2 answers
  • A 10 2/3 inch long pipe is cut into 8 equal length pieces.how long is each piece?
    14·2 answers
  • Amy is eight years older than twice her cousin Alicia’s age. The sum of their ages is less than 32. Let x represent Alicia's age
    14·1 answer
  • Pls help me with this ​
    8·1 answer
  • Miranda bought a shirt for 36.99 dollar but it was for 33 percent off what is the original price?
    11·1 answer
  • PLEASE HELP ASAP!
    10·1 answer
  • Only do the last two word problems. thanks!
    8·1 answer
  • Grace needs $45 to go to Six Flags. She has $13. She earns $8 an hour walking dogs. Which
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!