Answer:
The math problem is easy its 8.5,9.5
Step-by-step explanation:
I know this because i am good at math
X and 3 is the answer i think
Given:
Principal value = $640
Rate of interest = 3.9% not compounded
Number of years = 8
To find:
The amount after 8 years.
Solution:
It is given that the interest is not compounded. It means, we need to find simple interest.
Formula for simple interest:

where, P is principal, r is rate of interest and t is time in years.
Put P=640, r=0.039 and t=8.


So, the interest is $199.68.
Now, amount after 8 years is

where, P is principal and I is interest.


Therefore, the amount after 8 years is $839.68.
The inverse functions of sine, cos and tan functions are csc, sec and cot respectively.
<u>Step-by-step explanation:</u>
The reciprocals of sine, cos and tan functions are csc, sec and cot functions. The reciprocal of cosine function is secant, (sec) sec θ =
The inverse or reciprocal function is cosecant (csc), 
The inverse tangent function is cotangent (cot) , expressed in two ways:
or 
So
then its reciprocal or inverse is termed as cot θ.
Answer:
x= y/5 − 12/5
Step-by-step explanation:
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