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valina [46]
3 years ago
7

PLEASE HELP!!!!!!

Mathematics
2 answers:
vlada-n [284]3 years ago
5 0

Answer:

I believe D. B12

ehidna [41]3 years ago
4 0
I think it is d Im not postive
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Erik and Caleb were trying to solve the equation: 0=(3x+2)(x-4) Erik said, "The right-hand side is factored, so I'll use the zer
Mumz [18]

Answer:

C) Both

Step-by-step explanation:

The given equation is:

0=(3x+2)(x-4)

To solve the given equation, we can use the Zero Product Property according to which if the product <em>A.B = 0</em>, then either A = 0 OR B = 0.

Using this property:

(3x+2) = 0 \Rightarrow \bold{x = -\frac{2}{3}}\\(x-4) = 0 \Rightarrow \bold{x = 4}

So, Erik's solution strategy would work.

Now, let us discuss about Caleb's solution strategy:

Multiply (3x+2)(x-4) i.e. 3x^2-12x+2x-8 = 3x^2-10x-8

So, the equation becomes:

0=3x^2-10x-8

Comparing this equation to standard quadratic equation:

ax^2+bx+c=0

a = 3, b = -10, c = -8

So, this can be solved using the quadratic formula.

x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

x=\dfrac{-(-10)\pm\sqrt{(-10)^2-4\times3 \times (-8)}}{2\times 3}\\x=\dfrac{-(-10)\pm\sqrt{196}}{6}\\x=\dfrac{10\pm14}{6} \\\Rightarrow x= 4, -\dfrac{2}{3}

The answer is same from both the approaches.

So, the correct answer is:

C) Both

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2 years ago
Please help with this its a little confusing
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What about it? What is the question?
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In ARST, m R = 92° and mZS = 71°. Which list has the sides of ARST in order from
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Answer:which grade are you

Step-by-step explanation:

If you are grade 7 to 9 I know

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What is the solution to the expression -2-3-(-4)?
alexgriva [62]
Answer: -1

-2-3-(-4)
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A full grown German Shepherd weighs about 35 kg on Earth and only 13.3 kg on Mars. How much would a German Shepherd puppy weigh
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Answer:

Step-by-step explanation:5 pounds

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3 years ago
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