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4 years ago

Which value is needed to create a perfect square trinomial from the expression x2 + 8x + _____?

2 answers:

7 0

To find the value needed to create a perfect square trinomial, first take the coefficient in front of the x term (not the x2 term). The coefficient in front of the x term for this problem is 8. Now, divide that number by 2. 8 divided by 2 gives 4. We take that answer and square it. 4^2 = 16. 16 is the final answer, so x2+8x+16 is a perfect square trinomial. No matter what the coefficient is in front of the x term, if you always divide it by 2 and then square that answer, you will get the value that creates a perfect square trinomial.

german4 years ago

4 0

Answer: 16

x^2 + 8x + 16

Step-by-step explanation:

This is 100% correct for edge.nuity and e2020.

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3 years ago

It is customary to give a 15% tip for a meal at a restaurant. what is 15% of $64.40

alex41 [277]

Answer:

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Step-by-step explanation:

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3 years ago

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AVprozaik [17]

Answer:

$\frac{1}{4}^{2}$

Step-by-step explanation:

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3 0

3 years ago

∠A and \angle B∠B are supplementary angles. If m\angle A=(7x+10)^{\circ}∠A=(7x+10) ∘ and m\angle B=(7x-26)^{\circ}∠B=(7x−26) ∘ ,

blsea [12.9K]

Answer:

108 degrees

Step-by-step explanation:

Since angles A and B are supplementary, they both add up to 180. Angle A = 7x+10, and angle B = 7x-26. You can set up the equation A + B = 180, and then plug in angles A and B, which gives you 7x+10 + 7x-26 = 180. Then you just need to isolate x:

Combine like terms: 14x - 16 = 180

Add 16 to both sides: 14x = 196

Divide both sides by 14: x = 14

Now that you know x, you can plug it into the expression for angle A (7x+10):

A = 7(14) + 10 = 98+10 = 108

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3 years ago