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suter [353]
3 years ago
15

The formula for the axis of symmetry of a quadratic equation in standard form is

Mathematics
1 answer:
stepan [7]3 years ago
6 0

Answer:

C. b=-2ax

Step-by-step explanation:

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Which two values of x are the roots of the polynomial below? <br> x^2+5x+11
In-s [12.5K]

Answer:

x = -5/2 + i√19 and x = -5/2 - i√19

Step-by-step explanation:

Next time, please share the possible answer choices.

Here we can actually find the roots, using the quadratic formula or some other approach.

a = 1, b = 5 and c = 11.  Then the discriminant is b^2-4ac, or 5^2-4(1)(11).  Since the discriminant is negative, the roots are complex.  The discriminant value is 25-44, or -19.

Thus, the roots of the given poly are:

      -5 plus or minus i√19

x = -----------------------------------

                     2(1)

or x = -5/2 + i√19 and x = -5/2 - i√19

5 0
3 years ago
Read 2 more answers
Question
IRINA_888 [86]

Answer:

m=\frac{5}{3}

Step-by-step explanation:

Given the following question:

Point A = (-2, -9) = (x1, y1)
Point B = (1, -4) = (x2, y2)

To find the slope of a line, we will need to use the formula for slope or rise over run.

m=\frac{y2-y1}{x2-x1}
m=\frac{-4--9}{1--2} =\frac{5}{3}
m=\frac{5}{3}

The slope of the given line is indeed "5/3."

Hope this helps.

7 0
2 years ago
How to round in math im confused
Nastasia [14]
If the number you are rounding is 5, 6, 7, 8, or 9, it goes to ten. If the numbers are 4, 3, 2, or 1, then round down. For example,, 37 is rounded to 40. 34 is rounded to 30.
5 0
3 years ago
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Answer:

1. 8

2. 12

3. 9

I hope that helped! :)

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3 years ago
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The probability of a spinner landing on yellow is 1/4. What does 3/4 represent?
Art [367]

Answer:

P(yellow')

Step-by-step explanation:

It represents the probability that it will not land on yellow (negative probability)

5 0
2 years ago
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