Answer:
x/2
Step-by-step explanation:
Madison didn't cancel the common factor of 2 and that 4 that is why she is wrong.
Hope this helps pls brainliest have a nice day :>
The equation is actually
circle area = PI * radius^2
radius = square root (area / PI)
Answer:
$17.2
Step-by-step explanation:
120 + 16*100 = 120 + 1600 = 1720
The member pays $1720 annually for 100 classes and membership fee combined.
1720/100 = 17.2
The student pays $17.2 per class on average.
There are a couple of different ways you could do this, but I'll show the simpler way. We will use the formula

along with the fact that the vertex has h and k coordinates of 1 and 4 respectively, and that a point on the graph is (3, 5). We could have used any point on the graph where there is a definite integer coordinate pair. We will fill in accordingly and solve for a.
and
5 = 4a + 4. If we subtract 4 from both sides we get that
. Now we will fill in the formula and expand as needed:
and
. If we distribute the 1/4 in and then add the constants the final equation for that graph will be
