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
stira [4]
3 years ago
15

Helppppppppppppppppp​

Mathematics
1 answer:
Darina [25.2K]3 years ago
7 0

Answer:

3)

Step-by-step explanation:

An equation is linear if equal changes in x produce equal changes in y.

Let's look at each choice.

1)

A decrease of 10% per year. That means each year, the value of the car is 0.9 times the value of the previous year.

For example, if the original value was $10,000, after 1 year, it is worth 0.9 * $10,000 = $9,000. In 1 year it lost $1,000. In the next year, its value is now 0.9 * $9,000. The value at the end of the 2nd year is $8,100. In the second year, it lost $900 in value. In one period of 1 year it lost $1000 in value. In another equal period of 1 year, it lost $900 in value. A change of 1 year in time produces different changes in loss of value, so it is not linear.

2)

Here, the number doubles every year. Let's say it starts with 100 fish. After 5 years, it has 200 fish. In a change of 5 years in x, the change in y is 100. In the next 5 years, it goes from 200 fish to 400 fish. The change in the second period of 5 years is 200. We see that a change of 5 years can produce a change of 100 fish, but another change of 5 years can produce a change is 100 fish. Since for equal changes in x, the changes in y are not all equal, this is not linear.

3)

Here for every change of 1 day in x, the change in y is 2 liters. Each change of 1 in x always produces a change of 2 in y. This is linear.

4)

Each 2 hours, the amount of caffeine is 2/3 of what it was before. This is similar to the choice 1), and it is not linear.

Answer: 3)

You might be interested in
EASY MATH QUESTION <br><br> PLEASE HELP
Juli2301 [7.4K]
F(x)=3x^2-5 when x=-11
f(-11)=3(-11)^2-5
f(-11)=-33^2-5
f(-11)=1089-5
f(-11)= 1084

Hope this could help!
3 0
3 years ago
Louis bought a giant sub sandwich for the party. He wants to cut into 6-inch sections. If the sandwich is 18.25 feet, how many s
Lynna [10]
36.5
He’d have 36, 6 in sandwiches and a 3 inch section left
Explanation:
Take 18.25 and multiply by 12 which gives you 219. The amount of inches in the sandwich. Then divide 219 by 6 and you get 36.5
5 0
1 year ago
How far did this person travel in Section C ( hours 6-7) Remember to include units​
cestrela7 [59]
From C in 1 hour they traveled 30 miles
5 0
2 years ago
Which of the following describes the end behavior of<br> f(x) = (1/2)^x
NARA [144]

Answer:

as x approaches infinity, f(x) approaches 0

as x approaches -infinity, f(x) approaches infinity

Step-by-step explanation:

we can observe that 1/2 < 1 and since it's being exponentiated, the f(x) gets smaller and smaller as x gets bigger.

For example, f(0) = 1, f(1) = 1/2, f(2) = 1/4

so, as x approaches an infinitely large number, f(x) gets closer and closer to zero.

this is the opposite as x approaches a negatively large number. following exponential rules, 1/2^(x) = 2^x for all x < 0. therefore as x approaches negative infinity, f(x) approaches infinity.

in this case, f(-1) = 2, f(2) = 4, f(3) = 8

4 0
2 years ago
Find the first 3 terms of the sequence below.​
mars1129 [50]

Answer:

Step-by-step explanation:

1 - 8

2 - 14

3 - 22

4 0
2 years ago
Read 2 more answers
Other questions:
  • 60 pOINTS HELP PLEASE 4. A 20-kg child is tossed up into the air by her parent. The child is 2 meters off the ground traveling 5
    5·1 answer
  • Four oranges cost a total of 90 cents. At this rate, what is the cost of 3 dozen oranges? Step by step will put brilliants
    13·2 answers
  • Connor have six employees and Bob 41 uniforms for them if you wanted to give them the same number of uniforms so he doesn't have
    7·2 answers
  • 25 POINTS ANSWER FAST PLZ!!!!!!!!!!!!!!!!!!!!!!!
    8·2 answers
  • WILL GIVE BRAINLIEST ASAPP!!!!!
    14·2 answers
  • What value makes the equation true? 2(x-5)=20
    8·1 answer
  • A number cube with faces labeled 1 through 6 is rolled 200 times. About how many times would you expect to roll an even number?
    5·1 answer
  • Which figure is a pyramid? A cone. B cylinder. C rectangular prism. D pyramid.
    9·2 answers
  • Guys I'm quitting brainly for now so a lot of points from this because for some reason all my brainly crown have gone down to 1.
    15·2 answers
  • 4) 16 + 7 + 9 = 7 + 9 + 16 *
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!