An amusement park ride has a moving platform attached to four swinging arms. The platform swings back and forth, higher and higher, until it goes over the top and around in a circular motion. In the diagram below, AD and BC represent two of the swinging arms, and DC is parallel to the ground
(line l). Explain why the moving platform AB is always parallel to the ground.

5 0

3 years ago

1) how many significant digits are there in the sum of 45.10 and 102.203?

Sergio039 [100]

Oi :)

1) There are 3 significant digits
$45.10+102.203= 147.303$

2)
15 Mi/h = 22 ft/s

3)
$C= 72*m* \frac{3}{4} \\ \\ C= 72*81* \frac{3}{4} \\ \\ C= \frac{17496}{4} \\ \\ C=4374$

4)
There are 4 significant digitis. Leter C

7 0

3 years ago

What is the mean? 19, 16, 24, 12, 16, 21, 18

attashe74 [19]

I'm pretty sure it's 12.

6 0

3 years ago

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