3 years ago

Use the Discriminant to describe the roots of each equation. Then select the best description.

2 answers:

meriva3 years ago

7 0

I think the answer would be D

5 0

B^2 -4ac is the discriminant
5^2 -4*1*7
25-28= -3
Since the discriminant is negative the answer will be D non real roots.

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forsale [732]

I believe the answer is C!

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3 years ago

Ganezh [65]

Answer:

12/13

Step-by-step explanation:

A probability is the number of desired outcomes over the total number of outcomes.

Assuming that this is a standard deck of playing cards, there will be 52 cards, and there will be 4 "4" cards.

First, find the number of desired outcomes, and put it over the total number of outcomes.

Out of the total number of outcomes (52), there are 4 outcomes that are not wanted, hence the equation is:

52 - 4 = 48

So out of the 52 possible outcomes, 48 are desired. Set up the fraction and

simplify:

48/52

/4 /4

= 12/13

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3 years ago

Hitman42 [59]

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IgorC [24]

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Andre45 [30]

Answer: Observational study

Step-by-step explanation: I just took the test

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2 years ago