The Answer is: x1=-4 x2=1.
Answer:
a) 910
b) 828100
c) 144320
Step-by-step explanation:
a. ∑y
This is the sum of all values of y. So

b. (∑y)^2
This is the square of the sum, so the square of 910, that we found in the previous item.
910² = 828100
c. ∑y^2
This is the sum of the squares of each amount spent. So

Answer: I think the perimeter is 17ab4
Step-by-step explanation:
Answer:
π^2, 9.8 repeating, square root of 99.
Step-by-step explanation: