Answer:
the answer is 4
Step-by-step explanation:
if y=21 the we substitute in the main equation
21=8x-11
8x=32
x=4
Factor the gcf
3x(x^2-8x+12)
Then factor the inner trinomial
3x(x-6)(x-2)
Final answer: 3x(x-6)(x-2)
The length of AC is found using the Pythagorean theorem which is a^2+b^2=c^2.
In this case your equation would look like 4^2+4^2=c^2.
Four to the power of two is 16 so 16+16=c^2.
16+16=32
32=c^2
Root 32 = c
Length AC is root 32.
Yes, because two batches of dough equals 48 cookies. So she would need 3 batches, equaling to 72 cookies.