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saw5 [17]
3 years ago
8

A student is trying to calculate his semester average. He knows that his test average is an 80, his quiz average is a 72, homewo

rk is a 90, and classwork is a 93. If tests and quizzes are worth 30% each, and homework and classwork are worth 20% of his overall average, what is his average? Round to the nearest tenth.
What is the mean?
Mathematics
1 answer:
ELEN [110]3 years ago
4 0
You have to multiply and divide the 20% time the 30
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I’ll give u brainiest pls help me im so lost
Vlad1618 [11]

Answer:

(f o g)(4)=27

Step-by-step explanation:

(f o g)(4)=2x+5

f(g(4))=2x+5

f(4²-2(4)+3)=2x+5

f(16-8+3)=2x+5

f(8+3)=2x+5

f(11)=2x+5

f(11)=2(11)+5

f(11)=22+5

f(11)=27

Therefore, (f o g)(4)=27

3 0
2 years ago
What’s the axis of symmetry for f(x)=2(x-3)^2+6
Nadya [2.5K]

Answer: The axis of symmetry is x=3.

5 0
3 years ago
Does this graph has a minimum or maximum y=4x^2+4
Lorico [155]

Answer:

It has a minimum and no maximum.

Step-by-step explanation:

This is the graph of a parabola that opens up, so it has a minimum but no maximum.

7 0
3 years ago
Combine like terms to simplify the expression:<br><br> -7x + 3y - 2 + 6x - 1 - y2
diamong [38]
It seems that the expression is - 7x + 3y - 2 + 6x -1 - y^2

like terms:

-7x + 6x = - x

3y stands alone

-2 - 1 = -3

- y^2 stands alone

Answer: - x + 3y - 3 - y^2

[note: if the last term is not y^2 but 2y, then you have to combine +3y - 2y = y and the answer would be - x + y - 3]
5 0
3 years ago
Read 2 more answers
Y+3 1/2=6 help pleaseee
Verdich [7]
3 1/2 = 7/2
so y+7/2 = 6
y=6-7/2 = 12-7 / 2 = 5/2 = 2 1/2
8 0
3 years ago
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