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Eddi Din [679]
3 years ago
13

Which shows the correct substitution of the values a, b, and c from the equation 0 = – 3x2 – 2x + 6 into the quadratic formula?

Quadratic formula: x = -b
Mathematics
1 answer:
ZanzabumX [31]3 years ago
3 0

Answer:

shows correct substitution of the values a, b, and c  from the given quadratic equation    into quadratic formula.

Step-by-step explanation:

Given: The quadratic equation

We have to show the correct substitution of the values a, b, and c from the given quadratic equation    into quadratic formula.

The standard form of quadratic equation is  then the solution of quadratic equation using quadratic formula is given as

Consider the given  quadratic equation

Comparing with general  quadratic equation, we have

a = -3 , b = -2 , c = 6

Substitute in quadratic formula, we get,

Simplify, we have,

Thus,  and x_{2}=\frac{2-\sqrt{76} }{-6}

Simplify, we get,

Thus,  shows correct substitution of the values a, b, and c  from the given quadratic equation    into quadratic formula.

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One angle is 25° bigger than another angle. the two angles are supplementary. what is the measure of the two angles
Rama09 [41]
1st angle  - x⁰
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The angles are supplementary,
so
x+x+25=180
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x=77.5⁰ -1st angle

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3 0
3 years ago
Is {(3,4),(3,5),(4,4), (4,5)} a function
Sholpan [36]

Answer:

<u>No, it's not a function.</u>

Step-by-step explanation:

This is not a function because the x-inputs repeat. It would be a function if each x-input was a different number, but the inputs 3 and 4 repeat twice. <u>Therefore, this is not a function.</u>

3 0
2 years ago
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Can someone explain this? :)
Alchen [17]

I'll do part (a) to get you started.

The angle 'a' pairs up with the 123 degree angle as a corresponding angle pair. Due to the parallel lines, the corresponding angles are congruent. Therefore a = 123.

We also see that b = 123 as well since a = b (they are vertical angles).

Notice how angle c is adjacent to the 123 degree angle. These two angles form a straight line, so they must add to 180 degrees.

c+123 = 180

c = 180-123

c = 57

-------------------------

To summarize, we have these three angles

a = 123

b = 123

c = 57

6 0
3 years ago
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3×-7 equivalent expressions A. -21 B. 4 C. -4 D. 21
USPshnik [31]

Answer:

-21

Step-by-step explanation:

3x7=21 and a negative x a positive is always negative

6 0
2 years ago
|-3|=_________ how do you do this. so you know this is high school work.
ludmilkaskok [199]
These | | simple mean absolute value. Absolute value is simply the number positive, for example, the absolute value of -3 is simply 3
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3 years ago
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