The area of a circle is pi * radius squared, thus the area of the circle is 64(pi). Since we have a sector with 90 degree angle, the area of the sector is exactly 1/4 the area of the entire circle, or 16(pi)
Answer:
=> Expand by applying the FOIL method
=> combine like terms
Answer:
Step-by-step explanation:
Let tacos be x and burritos be y
So, Avery purchased 4x+2y = 21
Sasha purchased 4x+3y = 26.5
Solving the 2 eqns:
4x+2y=21
-4x-3y=-26.5
-y=-5.5
The cost of one burrito is $5.5
We know that y-intercepts are the values found when x=0;
1) v²-11v+30=y <-- replace 0 as y and substitute x=0
(0)²-11(0)+30=y
30=y
The y-intercept is 30 here.
2) v²+2v-8=y <-- repeat the above steps
(0)²+2(0)-8=y
-8=y
The y-intercept is -8 here
As you can notice, the c value in the standard equation (ax²+bx+c=y) is the y-intercept.
Hope I helped :)
Answer:
10%
Step-by-step explanation:
first let's write out the problem
0.99 is what percent of 9.90 = 0.99=9.90*x
We need to what c is so we would do the opposite operation of multiplication, division so we get,
0.99/9.90= .1
now we turn .1 into percent and get out answer
0.1= 10%