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ad-work [718]
3 years ago
14

A parabola passes through the points (0,-2) (2,-6) and (5,3) what is the equation of the parabola in standard form?

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
7 0

How many floors are between the seventh and fifteenth floors?

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4x+12+2=23<br> Solve the multi step equation
Eduardwww [97]

Answer: x = 9/4

Step-by-step explanation:

4x+12+2=23

4x+14 = 23

4x = 9

x = 9/4

7 0
3 years ago
Read 2 more answers
The line $y = 3$ intersects the graph of $y = 4x^2 + x - 1$ at the points $A$ and $B$. The distance between $A$ and $B$ can be w
raketka [301]

Answer:

61

Step-by-step explanation:

Let's find the points A and B.

We know that the y-coordinates of both are 3.

So let's first solve:

3=4x^2+x-1

Subtract 3 on both sides:

0=4x^2+x-1-3

Simplify:

0=4x^2+x-4

I'm going to use the quadratic formula, x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}, to solve.

We must first compare to the quadratic equation, ax^2+bx+c=0.

a=4

b=1

c=-4

\frac{-1 \pm \sqrt{1^2-4(4)(-4)}}{2(4)}

\frac{-1 \pm \sqrt{1+64}}{8}

\frac{-1 \pm \sqrt{65}}{8}

Since the distance between the points A and B is horizontal. We know this because they share the same y-coordinate.This means we just need to find the positive difference between the x-values we found for the points of A and B.

So that is, the distance between A and B is:

\frac{-1+\sqrt{65}}{8}-\frac{-1-\sqrt{65}}{8}

\frac{-1+\sqrt{65}+1+\sqrt{65}}{8}

\frac{2\sqrt{65}}{8}

\frac{\sqrt{65}}{4}

If we compare this to \frac{\sqrt{m}}{n}, we should see that:

m=65 \text{ and } n=4.

So m-n=65-4=61.

5 0
3 years ago
Read 2 more answers
Consider the matrix shown below:
DanielleElmas [232]
The awnsor is b hope this helped
8 0
3 years ago
Evaluate if a = 3, b = 4<br>a² +6²<br>a-b​
____ [38]

Answer:

a^2 + 6^2:

    3^2 + 6^2

    9 + 36 = 45

answer: 45

a-b

    3-4

     -1

answer: -1

Step-by-step explanation:

3 0
3 years ago
HELP PLZZZ I NEED ANSWERS
asambeis [7]

Answer:

D.

Step-by-step explanation:

y = (x - 5)^2 + 16

= x^2 - 5x - 5x + 25 + 16

= x^2 - 10x + 41

That corresponds with answer choice D.

Hope this helps!

3 0
3 years ago
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