The measures of the angles in △abc are given by the expressions in the table. angle measure angle a 65° angle b (3x−10)° angle c (2x)∘ find the value of x. then find the m∠b and m∠c.
Amotorboat maintained a constant speed of 12 miles per hour relative to the water in going 45 miles upstream and then returning. the total time for the trip was 8.0 hours. use this information to find the speed of the current.
Find and solve a recurrence relation for p_n, the value of a stock market indicator that obeys the rule that the change this year (from the previous year) equals twice last year’s change. suppose p_0 = 1, p_1 = 4.