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
Stacy goes to the county fair with her friends . The total cost of ride tickets is given by the equation c=3.5t , where c is the
madreJ [45]

Answer:

<h2><u>$52.5</u></h2>

Step-by-step explanation:

Step one:

given data

we are given that the linear function for the cost is  c=3.5t

c is the cost and

t is the number of tickets.

We are told that t=15, to find c, let us put the value of t in the linear function for the cost

c=3.5(15)\\\\c=52.5

<u>This shows that 15 tickets will cost $52.5</u>

<u />

3 0
2 years ago
SOMEONE PLS HELP ME PLEASE I BEG U AND SHOW WHY PLS I BEG
Illusion [34]

Answer:

The answer is less than one

Step-by-step explanation:

Because 1/2= less than 3

1 1/2= 3 and is less than 9

2 1/2= 5 not 15

8 0
3 years ago
Read 2 more answers
Blanca jogged 8 days last month she jogged 1.25 miles on each day and burned 140 calories per mile while jogging how many calori
xz_007 [3.2K]

Answer:

140p calories

Step-by-step explanation:

Bianca is said to have jogged km 8 days, while also completing 1.25 miles every day. First, we calculate the total number of miles Bianca jogged in total, and that is

8 * 1.25 = 10 miles

Therefore, Bianca jogged a total of 10 miles the previous month.

Again, it is said that Bianca burned 140 calories per each mile she jogged and were asked to find the total calories that was burnt.

If Bianca burns 140 calories per mile, then she must have burnt 140 * 10 calories in 10 miles.

Therefore, we conclude that Bianca burnt 1400 calories.

6 0
3 years ago
Pat has 9 cards. Frank has 2 more cards that Steve. Steve has 3 cards. How many mire cards does Pat have than Frank?
Dahasolnce [82]

Answer:

4

Step-by-step explanation:

Frank has 5 cards.

Steve has 3 cards.

Pat has 9 cards.

Therefore, Pat has 4 more cards than Frank.

Hope this helps!

3 0
3 years ago
♡♡♡please help ♡♡♡<br>thank you ​
ElenaW [278]

Answer:

acute angle

Step-by-step explanation:

<h2><em><u>Finding the angle </u></em></h2>

an obtuse angle is an angle which is more than 90° but less than 180°

a right angle is 90°

a straight angle is 180°

an acute angle is less than 90°

is you look at the picture and the definitions you can notice that the angle is less than 90 ° hence its an <u>acute angle </u>

7 0
3 years ago
Read 2 more answers
Other questions:
  • 5/12 ÷ 3/8<br>divide. write your answer in simplest form​
    8·2 answers
  • 1) A rectangular carpet has a perimeter of 288 inches. The length of the carpet is 96 inches more than the
    13·1 answer
  • How is net pay different from gross pay?
    11·1 answer
  • Make it simple X=(-y^2+sqrt(y^4+16z^2))/4
    8·1 answer
  • I will give you a Brainly crowd if it is right. Will you help me
    9·1 answer
  • CAN SOMEONE ANSWER 2 AND SHOW WORK THANK U LOVES
    13·1 answer
  • The union of 2 sets is all the elements of both set's, excluding the common elements true or false
    11·1 answer
  • ABCD is a square. Ifm/ABD = (5x – 20)°, what is the value of x?<br> B<br> E<br> C
    8·1 answer
  • I need some help with this
    6·1 answer
  • Find the value of x. Then find the angle measures of the polygon.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!