Answer: a= 16
Step-by-step explanation:
We have the following expression:

To find the value of the coefficient "a" you must use the distributive property to multiply the expression:

until you transform it to the form:

Then we have

Therefore the value of a in the polynomial is 16
2.25m + 2(2.25m) + 90 cm =
2.25m + 4.50m + 90 cm
6.75m + 90 cm
1 cm = 0.01m...so 90 cm = 90 * 0.01 = 0.9m
6.75m + 0.9m = 7.65m <===
OR..
1m = 100 cm....so 7.65m = 7.65 * 100 = 765 cm <===
Answer:
Choice B
Step-by-step explanation:
For a function to be a function, one of the easiest ways to tell is if an x-value has more than one y-value, because then it wouldn't pass the Vertical Line Test
But for choices A, C, and D, each x-value has 2 different y-values, failing the test