Consider the quadratic function f(x)= 9x^2+30x+25=0 Part a: find a value of the discriminant for the function.

A) 3
B) 6
C) 25
D) 0

D) 0

There is 1 real solution.

Step-by-step explanation:

Hi there!

This is written in standard form:

This means:

a=9

b=30

c=25

The discriminant states:

If D>0, there are 2 real solutions.

If D=0, there is 1 real solution.

If D<0, there are 2 complex solutions.

Plug in the values:

Therefore, there is 1 real solution.

I hope this helps!

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.

company a

step-by-step explanation:

using the linear regression models , it is found that company a   pays about $14 more. but using the same regression (linear) company b pays about $10 more.

so company a pays more than b