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
Georgia [21]
3 years ago
10

If ƒ(n) = 3n 2 - 7, then ƒ(-2) equals _____.

Mathematics
1 answer:
Gnom [1K]3 years ago
5 0
F(n) = 3n² - 7

f(-2) = 3(-2)² - 7
f(-2) = 3(4) - 7
f(-2) = 12 - 7
f(-2) = 5
You might be interested in
When sending a rectangular package through the U.S. Postal Service, the combined length and girth (perimeter of the cross sectio
weqwewe [10]
Let W = width of package
Let H = height of package
Let L = length of package

The perimeter cab be one of the following:
P = 2(L + W),  or
P = 2(L + H)

The perimeter of the cross section cannot exceed 108 in.
When the width is 10 in, then
 2(L + 10) <= 108
 L + 10 <= 54
 L <= 44 in

When the height is 15 in, then
2(L + 15) <= 108
L + 15 <= 54
L <= 39 in

To satisfy both of these conditions requires that L <= 39 in.

Answer: 39 inches
5 0
3 years ago
Help in don’t know what to do
Volgvan

Answer:

slope 4

y intercept 0, 4

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is the value for y in the following equation when x = -10?
nadezda [96]

Answer:

B.-38

Step-by-step explanation:

2x - 18 = y ...(1)

x = -10 (Given)

Now,

Put the value of x in equation (1) we get,

2(-10) - 18 = y

-20 - 18 = y

-38 = y

<em><u>y = -38</u></em>

Thus, the value of y is -38

6 0
3 years ago
Can the sides of a right triangle have sides the length of 48.5ft,30ft,32.5ft
myrzilka [38]

Answer:

No

Step-by-step explanation:

8 0
3 years ago
Find the amount of interest on $35,000 at 9.72% compounded monthly for 32 months
zhannawk [14.2K]

9514 1404 393

Answer:

  $10,308.92 interest earned

Step-by-step explanation:

The account balance is given by ...

  A = P(1 +r/12)^n

where principal P earns interest at annual rate r compounded monthly for n months. In this case, the balance would be ...

  A = $35,000(1 +0.0972/12)^32 = $45,308.92

The interest earned is the excess of the balance over the original investment:

  interest = $45,308.92 -35,000 = $10,308.92

4 0
3 years ago
Other questions:
  • Is number 4 right please
    15·2 answers
  • two kilograms of ground cinnamon is packaged into bags containing 38 grams each.there will also be cinnamon left over.how many b
    15·1 answer
  • Are 3/4 and 16/20 equivalent? Why or why not is one fraction smaller/larger than the other? How do you know
    5·1 answer
  • Question 5
    5·1 answer
  • A(4,-7) B(-2,1) find AB
    10·1 answer
  • Cali bought a sweater priced a $60. If the sales tax is 9% what is the total purchase price of the sweater?
    13·1 answer
  • Carl's Comic Books bought a comic book from a wholesaler for $2.50. He marked the book up
    8·1 answer
  • What is the slope of a line that contains the points (10,8) and (-5,8)
    15·1 answer
  • What is the value of u?
    5·1 answer
  • Spencer is 32 years younger than Jennifer. 3 years ago, Jennifer’s age was 3 times Spencer’s age. How old is Spencer now?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!