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kirza4 [7]
3 years ago
12

A student at a junior high school for a seventh and eighth graders wishes to survey all people in the school to find out which m

ode of transportation walking riding a bike riding a bus or riding in a car is used most often to get to school Describe the population for the survey and explain how the student might select a stratified sample
Mathematics
1 answer:
hammer [34]3 years ago
4 0

Answer:

cars because people are using it everyday i use one

Step-by-step explanation:

i use one

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Does the equation below represent a relation, a function, both a relation and a function, or neither a relation nor function
Jet001 [13]

Answer:

A. neither a relation nor a function

Step-by-step explanation:

A relation between two sets is a collection of ordered pairs containing one object from each set.

A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.

Quadratic equations are not functions. Quadratic equations are not a function because they touch two points that is on the same y-axis. Furthermore, if they are two points that have the same x axis, then it is not a function either. It doesn't have a relation either because there are two outputs that are the same by the x axis for 3x^2 - 9x + 20. Those are x = 1 and x = 2. For proof, you can plug both of them in.

3(1)^2 - 9(1) + 20 = 14

3(2)^2 - 9(2)+ 20 = 14

Both answers have 14 as the y-axis/output. This proves that this quadratic equation is not a relation either. Therefore, this equation is neither a relation nor a function.

4 0
3 years ago
Wendy kept track of the number of text messages she sent each day for three weeks. Drag and drop each number into the boxes to c
NeX [460]

Answer:

0-9 = 4

10-19 = 3

20-29 = 9

30-39 = 5

Step-by-step explanation:

8 0
3 years ago
Write a system of equations in x and y describing the situation. Do not solve the system. Keiko has a total of $ 5600 comma$5600
IgorLugansk [536]

Answer:

The correct answers are x + y = 5600 and x - y = 700.

Step-by-step explanation:

Write a system of equations in x and y describing the situation. Do not solve the system.

Keiko has a total of $ 5600, which she has invested in two accounts.

Let x be the amount of money in the larger account and y be the amount of money in the smaller​ account.

So, Keiko has invested her $5600 in two accounts x and y.

Thus x + y = 5600.

Also, given by the problem, the larger account (x) is $ 700 greater than the smaller account (y).​

Thus x - y = 700.

Thus the two system of equation in x and y describing the given situation are

x + y = 5600 and x - y = 700

8 0
3 years ago
5/9 power -2 * 3/5 power -3 * 3/5 power 0
zavuch27 [327]

Answer:

15

Step-by-step explanation:

5/9^-2 = 81/25

3/5^-3 = 125/27

3/5^0 = 1

81/25 x 512/27 x 1 = 15

3 0
2 years ago
Read 2 more answers
What is 21/49 in simplist from
ad-work [718]
If you divide 21/49 by 7 you get 3/7
8 0
3 years ago
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