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GREYUIT [131]
3 years ago
11

A carousel with a 40-foot diameter makes 3 revolutions per minute. (a) Find the angular speed of the carousel in radians per min

ute. (Round your answer to two decimal places.) 18.84 Incorrect: Your answer is incorrect. radians per minute (b) Find the linear speed (in feet per minute) of the platform rim of the carousel. (Round your answer to two decimal places.) feet per minute
Mathematics
1 answer:
Katarina [22]3 years ago
8 0

Answer:

A). 18.84 radians per minute

B). 376.80 feet per minute

Step-by-step explanation:

As we know carousal is moving with 3 revolutions per minute.

(a). Angular speed = 3 revolutions per minute

                               = 3 × (2π) per minute

                               = 6π per minute

                               = 6×(3.14)

                               = 18.84 radians per minute

B). Since linear speed = Radius × Angular speed

                                     = \frac{40}{2}\times (18.84)

                                     = 20 × 18.84

                                      = 376.80 feet per minute

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8 0
3 years ago
Find and simplify an expression for the area of three rows of m squares with side lengths of m centimeters. Please help
Anna [14]

Answer:

3m²

Step-by-step explanation:

A square is quadrilateral (four sides) in which all sides are equal. Also, opposite sides are parallel to one another and all the four angles in a square are 90 degrees each.

The area of a square is given as:

Area = length * length

Given that the square has side lengths of m centimeters, therefore:

The area of each square = m cm × m cm = m² cm²

There are three rows of m squares, hence the total number of square is:

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3 0
3 years ago
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vesna_86 [32]

Answer:

9 1/5

Step-by-step explanation:

Step 1: (-2 2/3) x (-3 5/4)

                                 |

Step 2: (-2 2/3)  x  ( -7/4)

Step 3: = 9 1/5

Hope this helps!

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Nat2105 [25]
Is that a dice your talking about?
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