For a right circular cylinder, if the radius is tripled and the hight is shrunk down to half its size then what is the surface areas if the origin radius is 7 inches and the original height is 17 inches

Surface area of right circular cylinder = 1,122 inches²

Step-by-step explanation:

Given:

Origin radius = 7 inches

Original height = 17 inches

New radius = 7 × 3 inches = 21 inches

New height = 1/2(17) = 8.5 inches

Find:

Surface area of right circular cylinder = ?

Computation:

⇒ Surface area of right circular cylinder = 2rh

⇒ Surface area of right circular cylinder = 2 × (22/7) × (21) × (8.5)

⇒ Surface area of right circular cylinder = 1,122 inches²

2 & 7

step-by-step explanation:

he climbs 300 ft/hr at a constant rate. the peak is at 1,500 ft.

when going up, he reaches 600 ft in 2 hours. remember, that he is going in a constant rate. divide 600 with 300:

600/300 = 2

assuming that he takes the same route back (meaning that it's a 1500 ft route back, you can solve.

note also that you are solving when he gets back to 600 ft after he reaches the peak.

first, find the amount of hours it takes to get up the peak. divide the total amount (1500), with the ft/her (300) to get the amount of hours (x):

1500/300 = x

x = 5

it takes jamie 5 hours to get up. now, he is returning down, and reaches 600 (his current destination). remember that he climbs at a constant 300 ft/hr. divide 600 with 300:

600/300 = x

x = 2

now add the two numbers together.

x = 5 + 2 = 7

jamie takes 7 hours to go up the mountain and reach his current position when descending.

(total amount/constant rate) = (time).

remember that it is a constant rate, so in total, when he gets back down the mountain, it will take the same amount of time as when he goes up. the total amount for the round trip is: 5 + 5 = 10.

~

-4, -2, 1, 4

step-by-step explanation:

domain = x values

range = y values