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sattari [20]
2 years ago
15

Can someone explain what to do

Mathematics
1 answer:
castortr0y [4]2 years ago
7 0

Answer:

8

Step-by-step explanation:

The equation of the parabola can be represented as

y = a(x + 1)(x - 5)

for some constant a.

Since the coefficient of x² is 2, a = 2, so

y = 2(x  + 1)(x - 5) \\  \\ y = 2( {x}^{2}  - 4x + 5) \\  \\ y = 2 {x}^{2}  - 8x + 10

So, the answer is 8.

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What conclusions can you draw by comparing the mean and MAD repairs per vehicle for each type of Vehicle
trasher [3.6K]
The mean would tell you the average number of repairs per vehicle type. It is the total amount of repairs divided by the total number of vehicles.

The mean absolute deviation (MAD) describes how close the values are typically to the mean. It is an average of the distances the individual points are from the mean. Basically, it tells how spread out the data is.
5 0
2 years ago
PLEASE HELP QUICK, I NEED IT
just olya [345]
We take the equation <span>d = -16t^2+12t</span> and subtract d from both sides to get
                                         0<span> = -16t^2+12t - d
We apply the quadratic formula to solve for t. With a = -16, b = 12, c = -d, we have
                                         t = [ -(12) </span><span>± √( 12^2 - 4(-16)(-d) ) ] / [2 * -16]</span>
                                           = [- 12 ± √(144-64d) ] / (-32)
                                           = [- 12 ± √16(9-4d)] / (-32)
                                           = [- 12 ± 4√(9-4d)] / (-32)
                                           = 3/8 ±√(9-4d) / 8
The answer to your question is t = 3/8 ±√(9-4d) / 8
5 0
3 years ago
Read 2 more answers
Find the domain and range
tresset_1 [31]
Domain: all real numbers
Range: y>-3
4 0
2 years ago
HELP ME FOR BRAINETEST
Eddi Din [679]

Answer:

1 7/8

Step-by-step explanation:

The answer is 1 7/8.

7 0
2 years ago
Consider the parabola represented by the equation -2y^2=4x
stepan [7]
Part 1: The general form for this matches y^2 = -4cx, which implies that this opens to the left. (Imagine assigning any value of y, whether positive or negative, which would result in a positive left-hand value. Then to match this sign, the value of x must be negative so that the right-hand side becomes positive as well.)

Part 2: The distance from the vertex to the directrix is given by c. This equation has its vertex at the origin (0, 0). If it opens to the left, the directrix is a vertical line to the right of the origin. This equation is y^2 = -4(1/2)x, so c = 1/2, and the directrix has the equation x = 1/2.

Part 3: The focus is inside the parabola, but it is the same distance from the vertex as the directrix. This distance is 1/2 units, and it will be to the left of the vertex. So the focus is at (-1/2, 0).
5 0
2 years ago
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