Dy=y'*dx
=8x*dx
=8(5)*0.4
=40*0.4
=16
Answer:
43.407 years
Step-by-step explanation:
Zoe invest $600 in college savings account. The account earns 5.7% interest compounded quarterly. How many years will it take for Zoe's account to reach $7,000?
We are asked to find time t in a compound interest formula
The formula is given as:
t = log(A/P) / n[log(1 + r/n)]
A = Total amount = $7000
P = Principal = $600
n = number of times interest is compounded = Quarterly =4
r = Interest rate = 5.7% = 0.057
Hence,
t = log(7000/600) /4[log (1 + 0.057/4)]
t = 43.407 years
THIS IS SO EASY!
Use the method of "Writing it as a sum". (meaning use addition signs.)
Use commutative property (Change order of expression of the same signs).
How to solve:
1.) They are all negatives so add.
-24 + (-26) + (-8)
-24 + - 26 + -8 They all have the same signs)
-50 + -8
-58
When you are writing it as a sum, you're basically adding it's additive inverse.
Step-by-step explanation:
3 answer.....
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