In the image, point a marks the center of the circle. which two lengths must form a ratio of 2: 1?
a. hi: ef
b. ef: ad
c. ad: ah
d. ah: hi
e. bc: hi

option b.

Step-by-step explanation:

we know that

In a circle the ratio of the diameter to the radius is equal to

because

so

In this problem

EF is a diameter

AD is a radius

therefore

50*10 is greater

step-by-step explanation:

if you add the zero from 10 to 50, it will give you a bigger number.

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.