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astra-53 [7]
2 years ago
5

Which of the following points is the solution of the quadratic equation:3x^2-5x-2=0​

Mathematics
1 answer:
Maslowich2 years ago
7 0

Answer:

x1 = 2

x2 = -1/3

Step-by-step explanation:

3x^2-5x-2=0

D=25-4*(-2)*3 = 25 + 24 = 49 --> sqrt 49 = 7

x1 = 5 + 7 / 2*3 =   2

x2 = 5 - 7 / 2*3 =  -1/3

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Calculate the density of a rock that has a mass of 454 g and a volume of 100.0 cm3.
Katena32 [7]

Answer:

4.54 g/cm^3

Step-by-step explanation:

d = m/v

d = 454 g ÷ 100.0 cm^3

d = 4.54 g/cm^3

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6 0
3 years ago
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andre [41]

Answer:

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2 years ago
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amm1812

\:  \:  \:  \:  \:  \:  \:

\frac{3}{10}  \\  \\ or \: in \: alternate \:  \: form \\  \\ 0.3

<h2><u>refer </u><u>to</u><u> the</u><u> attachment</u><u> for</u><u> explanation</u></h2>

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2 years ago
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6x-y in a verbal expression
Zolol [24]

Answer:

six x minus y.

Step-by-step explanation:

In changing it to verbal expression, you are essentially changing all the signs into words. Write it like how you will say it.

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8 0
3 years ago
Suppose that 62 percent of the graduates from your high school go on to four-year colleges, 15 percent go on to two-year college
inn [45]

Answer:

b) .474

Step-by-step explanation:

If 62% go to a four-year college, that means that those who don't represent 38% of the high-school graduates.

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To calculate that probability, we have to divide 18% by 38%.

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3 years ago
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