P=I÷rt
P initial investment ?
I interest earned 1200
R interest rate 0.04
T time 5 years
P=1,200÷(0.04×5)
P=6,000
Hope it helps
Answer:
56.7
Step-by-step explanation:
2.7 x 21 = 56.7
For these kinds of expressions use FOIL (first, outside, inside, last).
-2x • 9x = -18x^2
-2x • -3y = 6xy
8y • 9x = 72 xy
8y • -3y = -24y^2
Now combine them all:
-18x^2 + 78xy - 24y^2
He's using the graduated cylinder method. I think the volume might be between 15 and 20. (It's kind of not obvious...)
