3 years ago

Help me please, I really need it

Mathematics

1 answer:

Pachacha [2.7K]3 years ago

6 0

Answer:

A OR C

Step-by-step explanation: I think it is A because in the question it says y=3

then y=ax²+b and on the A) it says a= -2 and b=2 OR the answer might be C) because it says ax² and a=2

im sorry if both of these are wrong and im sorry if you don't understand what i mean but i hope i helped you . :)

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Let "x" represent the age of Brian.

Andrew is elder than Brian by 2 years, we can symbolize his age as "x+2"

Frank is twice as old as Andrew, we can symbolize his age as "2(x+2)"

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$\begin{gathered} 2x+4-\frac{1}{2}x=40 \\ 2x-\frac{1}{2}x+4=40 \\ \frac{3}{2}x=40-4 \\ \frac{3}{2}x=36 \\ x=24 \end{gathered}$

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2 years ago

Help me please, I really need it​

Help me please, I really need it