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
Aaron bought a set of plastic ice cubes with a mixture of water and air inside.
SVETLANKA909090 [29]

Answer:

The volume of water and air inside each of the plastic ice cubes is 3000mm³

Step-by-step explanation:

This problem bothers on the mensuration of solid shapes, rectangular pyramid.

The volume of a rectangular pyramid is expressed as

V=(l*w*h)/3

Given data

Length l = 20mm

Width w= 15mm

Height h= 30mm

Substituting our given data we have

V= 20*15*30/3

V= 9000/3

V= 3000mm³

5 0
3 years ago
Read 2 more answers
If triangle DEF is classified as equilateral, which statement must be true?
patriot [66]

Answer:

all three sides are congruent.

Step-by-step explanation:

it is equiangular.

sides are equal.

angles are equal.

all three sides are congruent.

6 0
3 years ago
Write the equation for this line
Nimfa-mama [501]

Answer:

y = 4x + 3

Step-by-step explanation:

7 0
2 years ago
This cuboid is made from 6 small cubes.<br> Write how many small cubes there are in this cuboid
Alexxx [7]

Answer:

30 cubes

Step-by-step explanation:

To find the number of small cubes in the larger cuboid, you can multiply the number of cubes that make up the length, width and height together.

There are 5 cubes along the bottom,  2 along the side and 3 going up. The volume would be 5 × 2 × 3 which is 30 cubes.

Hope this helps!

3 0
2 years ago
Help please!! Don’t understand! 6th grade math
Agata [3.3K]

Answer:

4. is 6.6

Step-by-step explanation:

I hope this helps

3 0
2 years ago
Other questions:
  • X&gt;10 is 3 a solution
    8·2 answers
  • Donavin has 5,734 baseball cards in his collection if each protective sheets does Donavin need? I NEED HELP
    11·1 answer
  • Peter is writing a number in scientific notation.The number is grater that ten million and less that one hundred million.Which e
    13·1 answer
  • HELP ASAP MATH QUESTION WILL BE MARKED BRAINLIESTTT!!
    7·2 answers
  • What is the sum of prime numbers between 110 and 125?​
    11·2 answers
  • Trapezoid STUV with vertices S(-7, -1), T(-2, -3),<br> U(-2,-5), and V(-7, -7): 90° counterclockwise
    6·2 answers
  • A train is traveling at a velocity of 75 km/hr it takes a train 5 hours to get to its destination how far did the train travel t
    14·1 answer
  • If f(x)= 3x+1 and g(x)= x^2-6 FIND (f+g)(x)
    11·1 answer
  • A cabinet is 3.4 meters tall. What is the height in feet?
    12·2 answers
  • Convenient store sold 8.5 pounds 6.26 Ibs 9.2 Ibs and 4.54 Ibs of apples each week during one month is the store started at out
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!