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2 years ago

Solve the system of equations y=2x-3 and y=x^2-3

Mathematics

2 answers:

KatRina [158]2 years ago

7 0

I have attached some answers in the photos below hope you find them useful

beks73 [17]2 years ago

6 0

Answer:

0 and 1

Step-by-step explanation:

Given :

$y= 2x-3\\y=2x^{2} -3$

Now equate the both equation :

$2x-3=2x^{2} -3$

2x=2 $x^{2}$

x- $x^{2}$ =0

x(1-x)=0

x=0

1-x=0

x=1

Therefore, x=0,1

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Standard form of two hundred ten million sixty four thousand fifty

cluponka [151]

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2 years ago

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elixir [45]

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3 years ago

You’re working in the sedan section of dean’s car dealership. A customer makes a down payment of 15% on a new car that costs $13

Shkiper50 [21]

Answer:

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2 years ago

When two computers are working together, they can finish updating software in 9 minutes. How long would they take individually t

tensa zangetsu [6.8K]

First computer takes x min. For 1 min it does 1/x part of work.

Second computer takes (x+24) min. For one min it does 1/(x+24) part of work.

Both computers for one min do (1/x+1/(x+24)) part of work.

At the same time, both computers for one min do 1/9 part of work.

$\frac{1}{x} + \frac{1}{x+24} = \frac{1}{9} 
\\ \\ \frac{x+24+x}{x(x+24)} = \frac{1}{9} 
\\ \\9(2x+24)=x^{2} +24x
\\ \\ 18x+216=x^{2} +24x
\\ \\ x^{2}+6x-216=0
\\ \\ D=b^{2}-4ac=36+4*216 = 900
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We can use only positive number here. So, 

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3 years ago

I need help with finding the answer of 21 laps in 7 minutes

Dimas [21]

I'm not sure if that's what you mean, but I assume you might want to know how long did it take to make one lap if someone did 21 laps in 7 minutes.

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It means that one lap took 1/3 of a minute (20 seconds).

If that's not what you meant, please specify the question :)

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2 years ago