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3 years ago

3v^2-12v-63 Show work please

Mathematics

2 answers:

sdas [7]3 years ago

8 0

Answer:

Step-by-step explanation:

Norma-Jean [14]3 years ago

7 0

Answer:

3(v − 7) (v + 3)

Step-by-step explanation:

3v^2 − 12v = 3v (v − 4)

⬇

3v (v − 4) − 63

⬇

Factor the polynomial

⬇

3(v − 7) (v + 3)

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Simplify please help

larisa [96]

The answer is C. 81.49 !!

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3 years ago

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Somebody please help me with this

satela [25.4K]

Answer:

15/56

Step-by-step explanation:

5 people have a license

3 people don't

? = Probability that first person has a license and second does not

We can divide the problem into two sections, the first being the probability of the first person having a license, and the second section is the probability that the second person doesn't have a license.

P1 = Probability of the first person having a license, there are 5 out of 8 person having a license, thus P1 = 5/8.

P2 = Probability of the second person having a license. There are 3 people not having a license, out of 8-1 = 7 persons available, since one is taken already from the first choice, therefore P2 = 3/7.

P1 and P2 are dependent events, thus P(1,2) = P1 * P2.

P(1,2) = P1 * P1 = 5/8 * 3/7 = 15/56

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2 years ago

Drinking 8 fluid ounces of milk provides 270.0 milligrams of calcium. How many fluid ounces of milk provide 72.5 milligrams of c

Margarita [4]

Set up a proportion:

$\frac{8}{270} = \frac{x}{72.5}$

The numerator represents fluid ounces of milk, and the denominator represents milligrams of calcium.

Simplify the first fraction to make multiplication easier:

$\frac{8}{270} \div \frac{2}{2} = \frac{4}{135}$
$\frac{4}{135} = \frac{x}{72.5}$

Cross multiply the fractions:

$72.5 * 4 = 290$
$135x = 290$

Divide both sides by 135 to get x by itself:

$290 \div 135 = 2.1$
$x = 2.1$

2.1 fluid ounces of milk provide 72.5 milligrams of calcium.

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3 years ago

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NNADVOKAT [17]

The scale factor is 1.25, I believe

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3 years ago

Is math a feature of the universe or a feature of human creation?

maxonik [38]

Answer:

a feature of the universe

Step-by-step explanation:

Math is a feature of the universe because what we call math is just a way of explaining how things work.

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