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3 years ago

12

Let ƒ be the function given by ƒ(x) = 2x +3x^2.

1 answer:

Likurg_2 [28]3 years ago

3 0

(X+1)(X+2) this is all I can do without knowing what f is

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Can some one help how to work out this problem<br> x-y=11<br> 2x+y=19<br>solve by substitution

kati45 [8]

$x-y=11 \\
2x+y=19 \\ \\
\hbox{solve the 1st equation for x:} \\
x-y=11 \\
x=11+y \\ \\
\hbox{substitute 11+y for x in the 2nd equation:} \\
2(11+y)+y=19 \\
22+2y+y=19 \\
22+3y=19 \ \ \ |-22 \\
3y=-3 \ \ \ |\div 3 \\
y=-1 \\ \\ x=11+y=11-1=10 \\ \\
(x,y)=(10,-1)$

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4 years ago

How to turn 40% into a fraction

julia-pushkina [17]

Just divide 40 by 100. Then simplify 40/100. The answer is 2/5.

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3 years ago

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An equation is shown below:

Zina [86]

Step-by-step explanation:

10x-40+15=-15

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3 years ago

What is the answer to 5/6-3/4 ?

Citrus2011 [14]

Answer:

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Step-by-step explanation:

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4 years ago

Someone who’s good at maths help this is rlly important I’ll brainlist u!!!! do the ones u know ig.

WITCHER [35]

Answer:

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that's all i remember ive done this before but my memory is wack, im sorry

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2 years ago

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