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
DanielleElmas [232]
3 years ago
5

If (x)= 2x square minus 1,then f(-3)

Mathematics
2 answers:
viva [34]3 years ago
4 0

Answer:

17.

Step-by-step explanation:

f(x) = 2x^2 - 1

f(-3) = 2(-3)^2 - 1

= 2 * 9 - 1

= 18 - 1

= 17

Hope this helps!

krok68 [10]3 years ago
4 0

Hope it will help u....

You might be interested in
Jeff gave 1/4 of a sum of money to his wife. Then he divided the remainder equally among his 4 children.
Semenov [28]

Answer:

A) The fraction of sum of money did each child receive is \frac{3 x}{16}

B) The sum of money did Jeff have $ 3200

Step-by-step explanation:

Given as :

Let The sum of money did Jeff have = $ x

The fraction of money did Jeff's wife get = \frac{1}{4} of $ x

The remaining money Jeff will have = $ x - \frac{1}{4} of $ x

I.e The remaining money Jeff will have = \frac{4 x - x}{4}

                                                                = \frac{3 x}{4}

A ) The remaining amount of money is divided equally among 4 children

So, The fraction of sum of money did each child receive = \frac{\frac{3 x}{4}}{4}

I.e The fraction of sum of money did each child receive =  \frac{3 x}{16}

B ) If each child will receive $ 600

∴,  \frac{3 x}{16} = $ 600

Or, 3 x = $ 600 × 16

Or, 3 x = $ 9600

∴    x = \frac{9600}{3}

I.e  x = $ 3200

So, The sum of money did Jeff have $ 3200  

Hence ,

A) The fraction of sum of money did each child receive is \frac{3 x}{16}

B) The sum of money did Jeff have $ 3200   Answer

8 0
3 years ago
Y = -6x<br> y = -8x + 6<br> ?????
iren [92.7K]

Answer:

x=3

Step-by-step explanation:

-6x=-8x+6

+8 +8

2x=6

2/2 6/2

x=3

6 0
3 years ago
1.3.33 Question Help A certain triangle has a perimeter of 3078 mi. The shortest side measures 71 mi less than the middle side,
maksim [4K]

Answer:

the shortest side is 855 miles long.

Step-by-step explanation:

a + b + c = 3078 miles

a = b - 71

c = b + 371

=>

(b-71) + b + (b+371) = 3078

3b + 300 = 3078

3b = 2778

b = 926 miles

a = 926 - 71 = 855 miles

c = 926 + 371 = 1297 miles

8 0
3 years ago
Find two numbers whose sum is -7 and whose difference is -1. Your answer is:
Katena32 [7]

-3 & -4;

-3 + (-4) = 7

-3-(-4) = -3+4 = 1

3 0
3 years ago
Angle A (6×-1 B 20degrees C (×+14degrees)
Art [367]
First you add all given angles up to equal 180 to give you Times in to equations

A= 125 degrees

C= 35 degrees

I hope I help you and good luck
4 0
3 years ago
Other questions:
  • Mr.parker will mix antifreeze and water in a ratio of 2 to 1 he needs 27 quarts of the antifreeze and water mixture to fill his
    8·1 answer
  • A baker was going to arrange 432 desserts into rows of 28. The baker divides 432 by 28 and gets a quotient with remainder 12. Ex
    6·2 answers
  • 1. What is the area of a circle with a diameter of 3.4 cm? Round your answer to the nearest tenth. (use 3.14 for pi)
    10·1 answer
  • Which expression is equal to<br> to (-10 – 2i) + (3 + i)?<br> 0 -7 ti<br> o – 13 –<br> 07-<br> -7-
    10·1 answer
  • 13) You are setting the combination on a
    9·1 answer
  • Which value is the solution of the equation 8.25r = 554.4?
    8·2 answers
  • Addition and Subtraction of Polynomials solve the question below
    12·1 answer
  • When you flip a biased coin the probability of getting a tail is 0.41.
    9·1 answer
  • Find the exact value of tan A in simplest radical form.<br> В B.<br> 14<br> 10<br> с<br> A<br> 196
    14·1 answer
  • Find x and y in the figure​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!