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chubhunter [2.5K]
2 years ago
14

What value of x makes 1/2(3x+4)=1/2x true. A.2. B.1. C-1. D.-2

Mathematics
1 answer:
Ugo [173]2 years ago
7 0

Answer:

The answer is D, -2. brainliest pls! :D

Step-by-step explanation:

-2*3=-6

-6+4=-2

-2*1/2=-1

-1=1/2x

1/2*-2=-1

-1=-1

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Find the larger of the two roots of the equation y = -2.2x2 + 63.5x - 17
Luden [163]

The larger of the two roots of the equation y = -2.2x^2 + 63.5x - 17would be 28.59.

<h3>How to find the roots of a quadratic equation?</h3>

Suppose that the given quadratic equation is

ax^2 + bx + c = 0

Then its roots are given as:

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

The given quadratic equation is

y = -2.2x^2 + 63.5x - 17

now, the roots of the equation are

x = \dfrac{-63.5 \pm \sqrt{63.5^2 - 4(-2.2)(-17)}}{2(-2.2)}\\\\\\x = \dfrac{-63.5 \pm \sqrt{4032.25 - 149.6}}{(-4.4)}\\\\\\x = \dfrac{-63.5 \pm \sqrt{3882.65}}{(-4.4)}\\\\\\x = \dfrac{-63.5 \pm 62.31}{(-4.4)}

The two roots are 0.27 and 28.59.

Thus, the larger of the two roots of the equation y = -2.2x^2 + 63.5x - 17would be 28.59.

Learn more about finding the solutions of a quadratic equation here:

brainly.com/question/3358603

#SPJ1

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2 years ago
Which one is the closest length of PQ
Cloud [144]
If i understand this correctly, it should be (M,L)
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297-325 over 297<br> how can i turn that fraction into a percentage?
Rainbow [258]

Answer:

Step-by-step explanation:

by moving the decimal 2 times to the right

5 0
2 years ago
Segment lm is the midsegment of trapezoid abcd. ab = 58, and dc = 98. what is lm?
kifflom [539]
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Simplified form of this expression 5z-8-4z-3z+6
kvasek [131]

Answer:

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Step-by-step explanation:

5z-8-4z-3z+6

5z-4z-3z-8+6

-2z-2

7 0
2 years ago
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