Select three ratios that are equivalent to 5:2. Choose 3 answers:

A
2:5

B
10:4

C
20:50

D
35:14

E
55:22

The three options that should be chosen are: B, D, E

Step-by-step explanation:

We are given the ratio 5:2 and are required to find 3 equivalent ratios from the provided list.

To find which of the ratios of the list are equivalent to 5:2, we have to simplify them by dividing by a common number.

A 2:5 This ratio is already simplified and it's not equivalent to 5:2

B 10:4. Dividing both numbers by 2 we get 5:2. This option is correct

C 20:50 Dividing by 10 we get 2:5 and it's not equivalent to 5:2

D 35:14 Dividing both numbers by 7 we get 5:2. This option is correct

E 55:22 Dividing both numbers by 11 we get 5:2. This option is correct

Thus, the three options that should be chosen are: B, D, E

if the eqn of the parabola is f(x) = (x-4)(x+2), we need to mult. this out to find the coordinates of the vertex.

then f(x) = x^2 + 2x - 4x - 8, and f(x) = x^2 - 2x - 8.

one way in which you can find the vertex is to calculate x = -b / (2a).   here, that comes to

        )

x = = 1.   f(1) = 1^2 - 2(1) - 8 = - 9.   vertex is at (1, -9).

        2(1) 

find another point on the curve:   let x=0, for which y=-8.   then (0, -8) is on the curve.   plot the vertex and this point and draw a smooth parabola thru both.

hope this