3 years ago

Given tw circles, circle A with a radius of 3 in. and circle B with a radius of 12 in.

Mathematics

1 answer:

dolphi86 [110]3 years ago

6 0

Answer:

1 : 4

Step-by-step explanation:

Circumference of the first one: 3 * 2 * π = 6π.

Circumference of the second one: 12 * 2 * π = 24π

Ratio: 6π:24π

divide both sides by 6π

1: 4

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3 years ago

Read 2 more answers

Alberto is snowboarding down a mountain with a constant slope. the slope he is on has an overall length of 1560 feet. the top of

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The slope of the equation is calculated as:

$\frac{h_2-h_1}{t_2-t_1}=m$

Where $h_2$ is the height of the upper part of the slope and $h_1$ is the height of the low er part.

$m=\frac{4000-4600}{24-0}$

$m=-25$

So, the equation of the line is:

$h-4600=-25(t-0)$

$h=-25t+4600$

With this equation we can find the height of Alberto after having passed 10 sec.

$h(10)=-25 (10)+4600\\h(10)=-250+4600\\h(10)=4350$

After 10 seconds Alberto is 350 feet from the bottom of the slope.

Alberto's speed is:

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The speed in miles per hour is:

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