Answer:
267.5
302.5
372.5
600
Step-by-step explanation:
Simple interest
PV(1+it)
1 year:
250(1+.07)
267.5
3 years:
250(1+.07*3)
302.5
7 years:
250(1+.07*7)
372.5
20 years:
250(1+.07*20)
600
How I know: 36 x .15 (15% is .15 in decimal). Answer: 5.4
<span>The characteristic equation for this is r^2 + yr + 1 = 0. Its roots are r = y/2 +/- isqrt(1-y^2/4). Finding the general solution to this equation gives us y = sqrt(20/9), which is the value of the damping coefficient y for which the quasi period of the damped motion is 50% greater.</span>
Answer:
the answer is option B
Step-by-step explanation:
answer is option B