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3 years ago

8

Find the vertex for the equation: y=-2x^2+16x-31

1 answer:

Nutka1998 [239]3 years ago

7 0

Answer:

Vertex is (4,1)

Step-by-step explanation:

x=-b/2a so you need to first divide the b (second term) by the a (first term) so you should get 1 as your new a and -8 as your new b. Negative (-8) is just 8 then divide that by 2(1) which is just 2 which equals 4. That is your x. To find your y, you plug your x back into the original equation and then solve it. Hope this helps!

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Two sides of a triangle are 12 and 18 cm. Complete the inequality to show the possible lengths of the third side.

musickatia [10]

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Let c be the unknown third side

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3 years ago

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2 years ago

The area of the base of a cylindrical container is defined by b(x) = x*2 - x + 12. Find

vagabundo [1.1K]

Answer: $V=x^3-2x^2+13x-12$

Step-by-step explanation:

Given

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$\Rightarrow V=\left( x^2-x+12\right)\cdot \left(x-1\right)\\\Rightarrow V=x^3-x^2+12x-x^2+x-12\\\Rightarrow V=x^3-2x^2+13x-12$

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2 years ago

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3 years ago

Read 2 more answers

8n-13=13-8n can someone answer with steps, please?

NARA [144]

Answer:

1.625

Step-by-step explanation:

Add 13 to both sides

8n = 26 - 8n

Add 8n to both sides

16n = 26

Divide both sides by 16

Your answer is 1.625

Hope I helped :)

Please consider Brainliest for me :)

(unless the other person does a better job)

(Which they probably will) :)

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2 years ago