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stich3 [128]
3 years ago
10

If x= -3 is the only x-intercept of the graph of a quadratic equation, which statement best describes the discriminant of the eq

uation?
A) The discriminant is negative.
B) The discriminant is -3.
C) The discriminant is 0.
D) The discriminant is positive.
Mathematics
1 answer:
bulgar [2K]3 years ago
8 0

Answer:

C) The discriminant is 0.

Step-by-step explanation:

Since the graph of the quadratic equation has only one x-intercept, we can conclude that the quadratic has only one real root.

If a quadratic equation has only one real root, then the discriminant is 0

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I have spent quite long on this but not able to solve it. Pls help ! Thanks!
Elenna [48]

Answer:

Adriana= $960

Tania= $1080

Step-by-step explanation:

Please see the attached pictures for the full solution.

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4 0
2 years ago
Cesar said that 19.2 × 9.5 equals 18.24. Is Cesar's answer reasonable? A. Yes, Cesar's answer is reasonable. B. No, Cesar's answ
Serhud [2]

C.

multiply 19.2x9.5=182.4

7 0
3 years ago
Read 2 more answers
Given that lines a and b are parallel and that m∠2 = 68°, find m∠5
Flura [38]

Answer: 112 degrees

Step-by-step explanation: In this problem, we are trying to find the m<5.

Notice that <2 and <3 are vertical angles which means they are congruent.

So we know that the m<3 is 68 degrees.

Now, notice that <3 and <5 are same side interior angles because

they lie on the same side of the transversal and on interior of lines a and b.

Now, it's important to understand that

same side interior angles are supplementary.

So we can setup the equation 68 + m<5 = 180.

Subtracting 68 from both sides, we have the m<5 = 112.

So the m<5 is 112 degrees.

3 0
3 years ago
A large fitness center offers a track, weight room, and pool. The fitness center charges $29 per month for a basic
jonny [76]

Answer:

6.8 hours of pool use for a total monthly charge of $69.80

Step-by-step explanation:

6.8(6)+29=69.80

4 0
3 years ago
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Complete parallel side 2
Gnoma [55]

Step-by-step explanation:

Assume length of side 2 = L

Area of parallelogram is Height x L

So, 72 = 8 x L

L = 9

8 0
2 years ago
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