Answer:
3/5
Step-by-step explanation:
Using SOHCAHTOA, we know that cos Ф = 
So, we know that cos Ф =
or, using the hint, 3/5
Answer:
5 hours 49min
Step-by-step explanation:
Please mark Brainliest when able.
An approximate number, that can be calculated mentally, is by using the rule of 72: Divide 72 by the interest in % to give the number of years needed to double the money.
In this case, the approximate number of years
n= 72/4=18 years (approximately)
Precise value by compound interest formula:
2P=P*(1.04)^n
=>
1.04^n=2
take logs on both sides
nlog(1.04)=log(2)
n=log(2)/log(1.04)=17.673 years

which means

which in turn means the next two terms are

and

.