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qwelly [4]
3 years ago
12

4. Caroline gets into a car accident. She is

Mathematics
1 answer:
Scrat [10]3 years ago
7 0

Answer:

525,000 N

Step-by-step explanation:

Since Force is mass multiplied by acceleration, you have to create the equation 25000*21 m/s^2.

25000*21 = 525000

She hit the parked car with 525,000 Newtons of force.

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dexar [7]

Answer:

C or 3rd option

Step-by-step explanation:

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3 years ago
Substitute the values for a, b, and c into b2 – 4ac to determine the discriminant. Which quadratic equations will have two real
hoa [83]

Answer: 0=2x^2-7x-9\\0=4x^2-3x-1\\0=x^2-2x-8


Step-by-step explanation:

We know that the standard quadratic equation is  ax^2+bx+c=0

Let's compare all the given equation to it and , find discriminant.

1. a=2, b= -7, c=-9

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2. a=1, b=-4, c=4

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So it has only 1 real number solution.

3. a=4, b=-3, c=-1

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So it has 2 real number solutions.

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b^2-4ac=(-2)^2-4(1)(-8)=4+32=36>0

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Thus it does not has real solutions.



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3 years ago
Read 2 more answers
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