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3 years ago

If the circumference of two circle are in the ratio 2:3, then their areas are in the ratio of

Mathematics

1 answer:

maxonik [38]3 years ago

6 0

Answer:

4:9

Step-by-step explanation:

To take the scale factor from distance to area, we square it

2:3 distance

Square each term

2^2 : 3^2 area

4:9

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Jasper got a 100% on his first test and an 85% on his second, but he'd rather not talk about how he did on the third. If Jasper'

inna [77]

Answer:

250

Step-by-step explanation:

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6 0

3 years ago

assume the camera is placed 6 feet from the center of the merry-go-round and the diameter of the merry-go-round is 6 feet. build

LenKa [72]

The trigonometric function that models the distance (feet) of the rider from the camera as a function of time (seconds) is γ(t) = ωt, where ω is the angular velocity of merry-go-round.

Let, center of the merry-go-round is C and camera is placed at point A. B(t) define the position of the rider at any time t. The angle between these three-point A, C and B is y(t). Radius (r) of the merry-go-round is 3 feet and distance (d) of the rider from the camera is 6 and the angular velocity of the rider is ω.

Assume the rider is at the edge of the merry-go-round (as the position is not specified). So, the length of CB(t) is r. To solve this problem lets consider that angular velocity of merry-go-round is constant, ω = 0 and y(t) = 0.

Therefore, we have y(t) = ωt

So, the the distance (feet) of the rider from the camera is (from the triangle AB(t)C)

C(t) = √(r² + d² - 2rdcos(y(t)) = √(45 - 36cos(ωt) = 3√(5 - 4cos(ωt))

Learn more about angular velocity here:

brainly.com/question/14769426

#SPJ4

8 0

2 years ago

Overview

nata0808 [166]

Answer:

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7 0

3 years ago

2) AY RA O positive zero O negative O undefined

bezimeni [28]

Answer:

negative

hope it helps;)

8 0

3 years ago

Read 2 more answers

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a>1

Tamiku [17]

Answer:

Step-by-step explanation:

$5(6x+4)-2(5x-2)\qquad\text{use distributive property}\ a(b+c)=ab+ac\\\\=(5)(6x)+(5)(4)+(-2)(5x)+(-2)(-2)\\\\=30x+20-10x+4\qquad\text{combine like terms}\\\\=(30x-10x)+(20+4)\\\\=20x+24$

$20x=4\cdot5x\\\\24=4\cdot6\\\\20x+24=4(5x+6)$

6 0

3 years ago