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mixer [17]
3 years ago
8

Please help! Math question.

Mathematics
1 answer:
Pepsi [2]3 years ago
7 0
I am pretty sure the answer is C because that would be the least biased with the most information.

A would be biased because it is only elementary. 

D is biased because it is only teachers that worked for a long time

B is fine, but C is better because it has more people.
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Read 2 more answers
The linear function f(x) = 0.9x + 79 represents the average test score in your math class, where x is the number of the test tak
Levart [38]

Given:

The linear function for average test score in your math class is

f(x)=0.9x+79

where x is the number of the test taken.

The linear function g(x) in the given table represents the average test score in your science class, where x is the number of the test taken.

To find:

Part A: The test average for your math class after completing test 2.

Part B: The test average for your science class after completing test 2.

Part C: Which class had a higher average after completing test 4?

Solution:

Part A:

We have,

f(x)=0.9x+79

Put x=2 in the above function, to find the test average for your math class after completing test 2.

f(2)=0.9(2)+79

f(2)=1.8+79

f(2)=80.8

Therefore, the test average for your math class after completing test 2 is 80.8.

Part B:

From the given table it is clear that g(x) =79 at x=2.

Therefore, the test average for your science class after completing test 2 is 79.

Part C:

Put x=4 in f(x), to find the test average for your math class after completing test 4.

f(4)=0.9(4)+79

f(4)=3.6+79

f(4)=82.6

From the table it is clear that the value of g(x) is increased by 1 as x is increased by 1. So, the value of function g(x) at x=4 must be 1 more than 80.

g(4)=81

It is clear that,

82.6>81

Therefore, math class had a higher average after completing test 4.

3 0
3 years ago
I need this answered please
TiliK225 [7]
The answers are

1: False
2: True
3: True
4: False
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2 years ago
-9 x 1/3 equals ___________________________
Leno4ka [110]
-9 x 1/3
= -9/3
= -3
......................................
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3 years ago
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