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3 years ago

Solve the quadratic equation by completing the square. x^2 - 10x + 18 = 0

1 answer:

3 0

Okay so basically, you subtract 18 on both sides since the 18 doesn't work, making the equation
x² - 10x = -18
So then you add (b/2)², which is 25, to both sides, to get
x² - 10x + 25 = 7
After this, you factor.
(x-5)(x-5) = 7
Then you simplify.
(x-5)² = 7
Then you solve for x.
√(x-5)² = √7
x-5 = (+ or -)√7

~ x= 5 (+ or -)√7 ~

Hope this helps!

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3 years ago

Solve the inequality

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$\huge\text{Hey there!}$

$\mathsf{\dfrac{x}{4}\geq-6}$

$\large\text{SUBSITUTE 1 where x is at temporarily, so we can simplify both}\\\large\text{sides of your inequality}$

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4 years ago

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There are 8 3/4-cup servings.

Step-by-step explanation:

What we know:

There is a 6-cup container of milk.

What we don't know:

How many 3/4-cup servings are there?

What we should do:

Divide 6 by 3/4.

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This is the same as 6 times 4/3.

6 * 4/3

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