he price were $12? he price were $15? he price were $6? l honth when the price i
ID: 3136377 • Letter: H
Question
he price were $12? he price were $15? he price were $6? l honth when the price is se 46. The area a directly as the square d a 16-ft2 the wall. If a 10-ft distance produces of a picture projected on a wall varies the square of the distance from the a 16-ft2 prod picture, what is the area of a picture when the projection unit is moved to a distance 20 ft from the wall? inversely The frequency of a vibrating string is proportional to its length. A 24-in. piano vibra of an 18-in. piano string? tes at 252 cycles/sec. What is the frequency resistance of a wire varies directly as its length and inversely as the square of its diameter. A 40-ft wire with 0.1-in. diameter has a resistance of 4 . What is the resistance of a 50-ft wire witha diameter of 0.20 in.? e amount of simple interest earned in an account varies jointly as the amount of principal invested and the amount of time the money is invested. If $6000 in principal earns $840 in interest after 2 yr, then how much interest will be earned on $4500 invested for 8 yr? 52. Th 54. The weight of a medicine ball varies directly as the cube of its radius. A ball with a radius of 3 in. weighs 4.32 lb. How much would a medicine ball weigh if its radius were 5 in.?Explanation / Answer
46) setting up the equation
Area = k d^2
where d is the distance
16 = k 10^2
k = 16/100
k = .16
finding area when distance = 20 feet
Area = 0.16 (20)^2
Area = 64 square feet
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.