Read carefully and understand each item. Choose the letter of the correct answer. Write your answers in your answer sheet.
1. Find the distance travelled if going at 100 kph for 2 hours.
a. 50 km.
b. 150 km.
c. 200 km. d. 0.5 km.
2. Find the distance travelled when travelling at 55 kph for 2 hours and 30
minutes.
a. 137.5 km.
b. 126.5 km.
c. 27.5 km. d. 8250 km.
3. Find the speed if I travel 300 miles in 6 hours.
a. 18 mph b. 50 mph
c. 150 mph d. 1800 mph
4. Find the time taken to travel 20 miles at 30 mph in minutes.
a. 90 min.
b. 0.67 min.
c. 1.5 min.
d. 40 min.
5. A helicopter flies 300 miles in 3 hours and 30 minutes. Calculate the average
speed in miles per hour of the helicopter.
a. 75.6 mph b. 80.4 mph c. 85.7 mph d. 90.9 mph
Linda rows a boat at Burnham Lake at an average speed of 20 meters per
minute. How long does it take her to row 150 meters?
a. 35 min. b. 7.5 min.
c. 300 min. d. 450 min.​

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.

answer: ratio of volume of cone (with 3 times the height and equal diameter) to volume of cylinder is 2 to 1. the value of π is not used.

step-by-step explanation:

radius is diameter/2 = 4.

area of circle is π r^2.

volume of cylinder is height × area of base = hπr^2 = 3(4^2) π = 48π cubic inches.

not knowing the formula for volume of cone, i calculate it using calculus (which is for calculating things).

volume of cone is integral 0 to h area(y) dy. area(y) is π r(y)^2. r(y) runs r to zero as y runs zero to h, r(0) = r, r(h) = 0.

r(y) = r - r/h y

area(y) = π (r - r/h y)^2 = π (r^2 - 2r^2y/h + r^2y^2/h^2) = π r^2(1-2y/h+y^2/h^2)

antiderivative area(y) = π r^2 (y-y^2/h+y^3/(3h^2))

integral 0 to h = π r^2(h-h^2/h+h^3/(3h^2) - (0)) = π r^2(h - h + h/3) = π r^2(h/3) = π/3 r^2 h

volume of this cone is π/3(4^2)18 cubic inches.

= 6 16 π = 96π cubic inches.

cone has twice the volume, 96/48.

cone height is 6 times the cylinder.

ratio of volume formula: π r^2 cancels.

cone over cylinder ratio is 6h/3 to h, 2 to 1.