zinai123
03.11.2019 •
Mathematics
The linear function f(x)= 0.2x+79 represents the average test score in your math class, where x is the number the test represents the average test score in your science class ,where xis the number of the test taken.
x / g(x)
1 86
2 84
3 82
part a: determine the test average for your math class after completing test 2.
part b: determine the test average for your science class after completing test 2.
which class had a higher avaraga after completing test 4? show work to support.
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Ответ:
answer:
a) 79.4
b) 84
c) science did better. see explanation .
step-by-step explanation:
a)
x represents the number of test taken.
we want to know the test average which is the output of 0.2x+79.
0.2(2)+79
0.4+79
79.4
b)
x represents the number of test taken.
so find x=2, and see the test average is 84.
c)
find what 0.2x+79 is for x=4.
0.2(4)+79
0.8+79
79.8 is the math test average after 4 tests have been taken.
the table shows while the test taken number goes up by 1 the test average for science goes down by 2.
following this pattern, when x=4, we will have g(4)=80.
80 is the science test average after 4 tests have been taken.
science has a higher test average than math since g(4)=80> 79.8=f(4).
Ответ:
142 degrees
Step-by-step explanation:
w = 38
In the drawing I made below, you can see that these two angles would be supplementary. 180 - 38 = 142