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liq [111]
3 years ago
10

Part A: Solve -np 70 < 40 for n. Show your work. (4 points)

Mathematics
1 answer:
ololo11 [35]3 years ago
6 0
Part A:

 -np - 70 < 40
                          +70
                   -np < 110
                      -n < 110/p

Part B

      4w-7k=28
-7k=28-4w
7k=4w-28
k=4/7w-4
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Find the discriminant and the number of real roots for this equation.
Margaret [11]

Our discriminant is 0 so, 4x^2 + 12x + 9 = 0 has one real root.

Option C is correct.

Step-by-step explanation:

we need to find the discriminant and the number of real roots for the following equation:

4x^2 + 12x + 9 = 0

The discriminant is found by using square root part of quadratic formula:

b^2-4ac

where b =12, a=4 and c=9

Putting values:

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To find out the number of real roots using discriminant we have following rules:

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Since our discriminant b^2-4ac is 0 so, 4x^2 + 12x + 9 = 0 has one real root.

Option C is correct.

Keywords: discriminant

Learn more about discriminant at:

  • brainly.com/question/8196933
  • brainly.com/question/9328925
  • brainly.com/question/4853862

#learnwithBrainly

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x/2=27/18

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x=54/18

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27y=6.(18)

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Answer:

20 cups of apple juice

Step-by-step explanation:

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