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
Lady bird [3.3K]
3 years ago
6

If f(n) = n2 - n, then f(-4) is _____. -20 20 12 -12

Mathematics
2 answers:
kolbaska11 [484]3 years ago
8 0
<span>The correct option is "20" because

f(n)=<span>n2</span>−n
(−4)=(−4<span>)2</span>−(−4)
      =16+4
      =20</span>
Alekssandra [29.7K]3 years ago
5 0

Answer:

The answer is 20.

Step-by-step explanation:

The answer of this question is applying the number -4 in the equation, this is:

f(n)=n^{2} -n\\Replacing\\f(-4)=(-4)^{2} -(-4)\\f(-4)=16+4\\f(-4)=20

The answer is 20.

You might be interested in
Evaluate 5-\dfrac{t}35−
solmaris [256]

Answer:

31.438

Step-by-step explanation:

yan ppo ang tama sagot

7 0
3 years ago
Read 2 more answers
This equation shows how the number of cookies Jonah can bake is related to the amount of flour he has. c = 8f The variable f rep
Romashka [77]

Answer:

c = 24

Step-by-step explanation:

8*3=c

4 0
2 years ago
The number of dogs at the animal shelter is 150 less than the number of
Hoochie [10]

Answer:

48, hope this helps!

6 0
2 years ago
An article retails for 27.50. The city sales tax is 6%, and the federal excise tax is 8%. How much does the article cost altoget
-Dominant- [34]
Cost of the article = $27.50
Amount of city sales tax = (27.50 x 6%) = $1.65
Amount of excise tax = (27.50 x 8%) = $2.20
From my knowledge, we pay city sales tax and federal excise tax when we buy something, so the total cost would be $31.35
5 0
3 years ago
Read 2 more answers
198round to the nearest tens and hundreds
Xelga [282]
198 round to the nearest hundreds is 200
198 round to the nearest tens is 200 too
8 0
3 years ago
Other questions:
  • Write an expression that shows how to multiply 4 x 362 using place value and expanded form.
    10·1 answer
  • Evaluate −f(a)<br><br> f(x)=−5x²+2x−1
    7·1 answer
  • Factor. 2xy+5x−12y−30
    7·2 answers
  • Raymond is 2 meters tall and Paul is 6 feet tall. Who is taller?
    12·2 answers
  • Combine like terms to simplify the expression:<br> 1.3b+7.8−3.2b
    13·1 answer
  • What is 3.14x8.00049
    9·1 answer
  • How do you figure out the quotient of (16x³+24x²)÷2x
    8·1 answer
  • Which point is located at (-2, 3)
    10·1 answer
  • Here is a rectangle work out the size of angle x and y
    11·1 answer
  • B<br> 45°<br> 71°<br> E<br> 27°<br> A<br> D<br> 11. What is mBAC
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!