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Butoxors [25]
3 years ago
7

Help me please ! HSHWJWJWODO

Mathematics
1 answer:
Andrei [34K]3 years ago
8 0

Answer:

22.7

Step-by-step explanation:

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The recommended time to take a math test is 23 minutes. you complete it in 18 minutes. what is the percent change between your t
LenKa [72]
I did my math and I think 41 minuets but are u adding or subracting
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4 years ago
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25 3/8 -(104/5 +5 7/8
dezoksy [38]
-1 3/10 is the correct answer
3 0
3 years ago
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Hello , I need help please and thank you very important
Gre4nikov [31]

A. 84

Because 14x6=84


7 0
3 years ago
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If f(x) = x/2-3 and g(x) = 4x2 + x - 4, find (f+ g)(x).
snow_tiger [21]

Answer:

(f+g)(x) = 4 x^2 + (3/2) x - 7

Answer (c) on your list

Step-by-step explanation:

f+g (x) = f(x) + g(x) = x/2 - 3 + 4 x^2 + x - 4

combine the terms in "x" = x/2 + x = (3/2)x

combine the numerical terms: - 3 - 4 = - 7

Then the final expression is:

(f+g)(x) = 4 x^2 + (3/2) x - 7

8 0
3 years ago
Using Cramer’s Rule, what is the value of x in the system of linear equations below? x+3y=16 3x+y=8
alexdok [17]
Cramer's rule works as follows:
x+3y=16
3x+y=8
Then 
x=Dx/D
y=Dy/D
where Dx,Dy,D are 2x2 matrices formed from of coefficients and right hand side.
D=
1 3
3 1
=1-9=-8
Dx=matrix D with first column replaced by the vector [16,8]=
16,3
8 1
=16-24
=-8

Dy=matrix D with second column replaced by the vector [16,8]=
1 16
3 8
=8-48
=-40

Therefore
x=-8/-8=1
y=--40/-8=5

Check:
x+3y=1+3(5)=16
3x+y=3(1)+5=8   ok.
4 0
3 years ago
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