3 years ago

Solve 2x^2+3x=20 by completing the square

2 answers:

7 0

X=18/5 is what i got

4 0

Answer:

-21x

I think I did the math and this is what I got.

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WITCHER [35]

Hi
You can choose to points (x,y) which solve the equation, like (0,-3) and (4,0) and then draw a line through the points.

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3 years ago

DENIUS [597]

.75x +1.29 = 7.00

x = the amount of bagels he wants.

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3 years ago

vlabodo [156]

Given equation is y=2x+7 and $\frac{1}{2}y=x+\frac{7}{2}$

Let's simplify the 2nd equation $\frac{1}{2}y=x+\frac{7}{2}$ before we can start graph so that calculation will be easy

$\frac{1}{2}y=x+\frac{7}{2}$

multiply both sides by 2 to cancel out fractions

$2*\frac{1}{2}y=2*x+2*\frac{7}{2}$

y=2x+7

which is exactly same as the first equatoin so graph of both will be exactly same and solution will be infinitely many solutions.

y=2x+7 has y-intercept 7 so first point will be (0,7). Slope is 2 so rise 2 unit up then 1 right and graph the new point.

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3 years ago

eimsori [14]

Answer:

Step-by-step explanation:

6/1=48/8

48/8÷3/8=6

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2 years ago

Nonamiya [84]

Djjdjdjdjdjsksjdjjdjdjdjdjdjdndndnndndjd

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3 years ago