3 years ago

28-

Mathematics

1 answer:

pashok25 [27]3 years ago

5 0

Answer:

5.495%

Step-by-step explanation:

Find the percent change by dividing the difference in prices by the original price, then multiplying it by 100

(10.99 / 200) x 100

0.05495 x 100

= 5.495

So, the percent change is 5.495%

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A 15 foot ladder is leaning against a wall. if the top slips down the wall at a rate of 4 ft/s, how fast will the foot be moving

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Answer:

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Step-by-step explanation:

To solve this we are using the arc length formula:

$s=r\alpha$

where

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$r$ is the radius of the circle

$\alpha$ is the central angle in radians

We know from our problem that the central angle is $\frac{\pi }{4}$ and the radius of the circle is 8 inches, so $\alpha =\frac{\pi }{4}$ and $r=8in$ . Let's replace the values to find $s$ :