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
Arisa [49]
3 years ago
13

If f(x)=2x and g(x)=x^2 -1, which statement is true?

Mathematics
1 answer:
choli [55]3 years ago
8 0

Answer: D

<u>Step-by-step explanation:</u>

f(x) = 2x     g(x) = x² - 1

f(g(x)) = 2(x² - 1)

         = 2x² - 2

g(f(x)) = (2x)² - 1

         = 4x² - 1

You might be interested in
A youth group is setting up camp. Rain is predicted, so the campers decide to build a fly, or rain cover, over their tent. The f
pshichka [43]
The image for this is attached for reference. This problem can be used by the Pythagorean equation.  To make solving convenient, let us see only one part of the tent. Hence, one side is half of the tend width which is 16/2ft. Height is 12 ft. The unknown side is the hypotenuse. The answer is: 
a^{2} + b^{2}  = c^{2}    8^{2} + 12^{2}  = c^{2}   c = 14.4

7 0
3 years ago
Alexa is ordering a taxi from an online taxi service. The taxi charges $4 just for the pickup and then an additional $1.25 per m
Anvisha [2.4K]

Answer:$15.25

Step-by-step explanation:just multiply $1.25x9 then add 4

8 0
3 years ago
A football team has a probability of .75 of winning when playing any of the other four teams in its conference. If the games are
Alexeev081 [22]

Answer:

0.3164 = 31.64% probability the team wins all its conference games

Step-by-step explanation:

For each conference game, there are only two possible outcomes. Either the team wins it, or they lose. The probability of winning a game is independent of any other game. This means that the binomial probability distribution is used to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

A football team has a probability of .75 of winning when playing any of the other four teams in its conference.

The probability means that p = 0.75, and four games means that n = 4

If the games are independent, what is the probability the team wins all its conference games?

This is P(X = 4). So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 4) = C_{4,4}.(0.75)^{4}.(0.25)^{0} = 0.3164

0.3164 = 31.64% probability the team wins all its conference games

4 0
3 years ago
Five workers are hired to seed a field by hand. Each is given a plot which is 6x12 feet in size. What is the total area of the f
Lorico [155]

Answer:

360 feet

Step-by-step explanation:

multiple 6 by 12 to get the area of the individual plot of land given to a single worker.

Then multiply by 5 for all 5 workers getting the same plot of land.

3 0
4 years ago
How to find the surface area of the open net
Kruka [31]
To find the surface area of the open net, you’ll have to find the area of the faces
So, since there are 6 boxes you’ll have to find the area of the faces and add it up to find the surface area
10x4=40x4=160
3x4=12x2=24
160+24=184

Hope this helps ;)
5 0
3 years ago
Other questions:
  • jose buys a new moped. he travels 3km south and then 4 km east. how far does he need to go get back to where he started
    7·1 answer
  • What the expression has the factor of (H +2)
    15·1 answer
  • What is the number in standard form 4.9 x 10 by the 8th power
    15·1 answer
  • What is a genetic mutation?
    10·2 answers
  • Pepper Jakie has 12 picks. 1 out of every 4 picks orange the rest are green how many picks ar orange?
    8·2 answers
  • How to fine all possible four digit combinations to a large number
    15·1 answer
  • The following numbers show the cost of renting a full-size rental car, based on the number of miles driven. (0 miles=$68.97), (5
    12·1 answer
  • What is the geometric mean of 2 and 14?
    13·1 answer
  • At a department store, Kendra has a debt greater than $25.00. Which could be Kendra’s balance? Negative 32 dollars Negative 22 d
    12·2 answers
  • What is an equation in point-slope form of the line that passes through (−1,−4) and (2, 5)?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!