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3 years ago

Some of the steps for completing the square to solve

1 answer:

8 0

To complete the square, first the coefficient in front of the x^2 must be 1, which it is in this case. Then, take the coefficient in front of the x and divide by 2, then square that.

5/2=2.5
2.5²=6.25 or 25/4

Then add this number to both sides and simplify.

x²+5x+25/4=2+25/4
x²+5x+25/4=33/4

Factor the left side using reverse foil. Hint: the number that you are adding/subtracting by should be the number you got when you divided the coefficient of x by 2

(x+5/2)²=33/4
√<span>(x+5/2)²=</span>√(33/4)
x+5/2=33/4 or x+5/2= -33/4
x=23/4 or x=-43/4

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Step-by-step explanation:

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3 years ago

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Which equation represents a line which is parallel to the line 2x+y=-8?A. y=− 1/2 x−4B. y=−2x+5C. y=2x+3D. y= 1/2x+2

katrin2010 [14]

Two lines that are parallel have the same slope. In its slope-intersect form, we can write the equation of a line with slope m and y-intercept b as:

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Thus:

$m=-2$

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4 0

1 year ago

Please help me asap really important

vichka [17]

Answer:

r = 3cm

h = 20cm

SA = 433.32cm^3

Step-by-step explanation:

If you use 3.14 for pi you will get 433.32.

Plz mark brainliest if this helped!!!

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3 years ago

The hypotenuse of a right triangle is 7 inches, and one of the legs is square root 13 inches. Find the length of the other leg.

Rashid [163]

The answer is A) 6 inches.
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4 years ago

25 points for answer

Sliva [168]

I need more information

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3 years ago