Answer:
A. 4x^2 - 9
Step-by-step explanation:
2x * 2x = <u>4x^2</u>
2x * -3 = <u>-6x</u>
3 * 2x = 6x
-3 * 3 = -9
-6x + 6x = 0, so we're left with 4x^2 - 9
Answer:
In 10 weeks he saved: 87.8-37.8= $50
so each week he saves 50/10= $5
Step-by-step explanation:
So every week he earns 5*100 / 20= $25
The formula is
A=p e^rt
A future value?
P present value 2500
E constant
R interest rate 0.05
T time 10 years
A=2,500×e^(0.05×10)
A=4,121.80
Answer:
14π or 43.96
Step-by-step explanation:
C = 2πr and we know that r = 7 so C = 14π or 43.96.