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Bezzdna [24]
3 years ago
9

A line that included the points (d,-4) and (-2,2) has a slope of -2. What is the value of d

Mathematics
1 answer:
Citrus2011 [14]3 years ago
3 0
(2+4)/(-2-d) = -2

6 = -2(-2-d)
6 = 4 + 2d

2 = 2d

1 = d
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Slope = (y2 - y1)/(x2 - x1) = (-1 - 4)/(4 - (-3)) = -5/(4 + 3) = -5/7
4 0
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What times 2 equals 100
Genrish500 [490]

Answer:

50

Step-by-step explanation:

50 x 2 = 100

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7 0
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Read 2 more answers
Edenuity Quiz
lesya [120]

Answer:

C?

Step-by-step explanation:

A) Jared makes x of a goodie bag per hour. How many

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B) Jared makes x of a goodie bag per hour. How many

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D) id k

Quotient is the answer to a division problem, so we need to find a problem that needs to divide x and y to find the answer. It isn't A or B, since they are asking for y, not the quotient. I have no idea what D is. C makes sense, so C might be the answer.

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So C is the answer.

---

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4 0
3 years ago
Drag a number to each box to complete the product. Numbers may be used more than once. 0.4764.7647.64764,760 Equation Product 47
ryzh [129]

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Step-by-step explanation:

8 0
2 years ago
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:

=b^2-4ac\\=(12)^2-4(4)(9)\\=144-144\\=0

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

  • if discriminant b^2-4ac >0 then 2 real roots
  • if discriminant b^2-4ac =0 then 1 real root
  • if discriminant b^2-4ac <0 then no real roots

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

6 0
3 years ago
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