X-2y-3=0 should be the answe
He is 71 which is a prime number.
A year ago he was 70 which is 2x5x7 all prime and distinct (different). In a years time he will be 72 which is 8 cubed x 3 squared.
Answer:
To find the average rate of change, we divide the change in the output value by the change in the input value.
It took 1.9 years to pay back the loan.
<h3>What is Interest ?</h3>
Interest is the amount of money given or received when a certain sum of amount is received as a loan or given or deposited for investment.
It is given that
Principal amount of loan = $ 8000
Interest paid = $ 600
Rate = 4%
Time Period = ?
Assuming Simple Interest has been applied
I = ( P* R* T) /100
600 = ( 8000 * 4 * T ) / 100
60000 = 8000 * 4 * T
T = 1.875 years
T = 1.9 years rounded to 1 decimal
T = 22.5 months
Therefore it took 1.9 years to pay back the loan.
To know more about Interest
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1) slope of the line = derivative of the of the function at the given point.
y' = cosx - x cosx
Evaluate for x = pi => y' = cos(pi) - pi*cos(pi) = -1 - (pi*cos(pi)) = -1 + pi
Then slope = -1 + pi
Given point: (pi, -pi)
Equation:
y - (-pi) = [-1+ pi] (x - pi)
y + pi = -x +pi + xpi -pi^2
y = (pi-1)x - pi^2 .... this is the answer
