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2 years ago

What is the solution of the equation x2 + 8x = 4?

Mathematics

1 answer:

d1i1m1o1n [39]2 years ago

4 0

Answer:

hope this is correct

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Please help me with this question!!!!!

amm1812

Answer:

B. $H(x)=-.008(x-82)^{2}+83$

Step-by-step explanation:

Well lets graph the following equation first,

H(x) = -.011(x - 82)^2 + 75

Then lets graph all the other equations.

Look at the image below↓

So A.

The purple line does not go farther or higher,

so A. is incorrect

The black line goes higher and farther,

meaning it is correct.

The red line goes farther but not higher.

So it is incorrect

Again the blue line does not go farther of higher.

So its wrong.

Thus,

answer choice B. $H(x)=-.008(x-82)^{2}+83$ is correct.

Hope this helps :)

3 0

3 years ago

Permutation or Combination?

Lisa [10]

Answer:

More study and also hard

6 0

2 years ago

I need to show how to find these solutions 1/4 and 3/4 by completing the square!

Arlecino [84]

Answer:

See explanation, and ask for more details if unclear!

Step-by-step explanation:

The perfect square of this equation is $x^2-x+\frac{1}{4}$ , since the square would be $(x-\frac{1}{2})^2$ . 1/4=4/16, meaning that you can set up the equation in the following way:

$(x^2-x+\frac{1}{4})-\frac{1}{16}=0$

$(x-\frac{1}{2})^2=\frac{1}{16}$

Take the square root of both sides:

$x-\frac{1}{2}=\pm \frac{1}{4}$

Add 1/2 to both sides:

$x=\frac{1}{2}\pm \frac{1}{4}=\frac{3}{4}, \frac{1}{4}$ . Hope this helps!

8 0

2 years ago

Read 2 more answers

a girl showing half her body gets answered quicker then a math post. all I want is the answer to this and no one helps me sooooo

Gre4nikov [31]

The percent error would be 5.8%.

3 0

2 years ago

Three out of 7 people were sneakers. In Grand

Stels [109]

Answer:

Step-by-step explanation:

3/7 × 1256

= 358

4 0

2 years ago