3 years ago

Mr. Martin is giving a math test next period. The test, which is worth 100 points, has 29 problems. Each problem is

Mathematics

1 answer:

Katarina [22]3 years ago

5 0

Answer: A

Step-by-step explanation:

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Brianne solved a quadratic equation. Her work is shown below, with Step 2 missing.

Alja [10]

Given:

The given quadratic equation is

$3(x+4)^{2} = 48$

or, $(x+4)^{2} =16$

And

The roots are given: $x = -8 , x = 0$

To find the missing step.

Let us solve the equation.

$3(x+4)^{2} = 48$

or, $(x+4)^{2} = 16$

or, $x^{2} +8x+16 = 16$ [ eliminating 16 from both the side]

or, $x^{2} +8x = 0$

or, $x(x+8) = 0$

or, $x = 0, x = -8$

Hence,

The step 2 could be $x^{2} +8x = 0$

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Answer:

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miv72 [106K]

thats cool did you want to ask a question though?

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If you pay 5% sale tax on three items have you paid a total of 15% sales tax? why or why not

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Total - book $ - magazine $

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Total + (-book $) + (-magazine $)
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ANSWER: (C) $35 + (-$7) + (-$5)

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