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3 years ago

The second on a watch is 14mm long. What area does it sweep through in 30 seconds

Mathematics

1 answer:

skad [1K]3 years ago

3 0

Exact Area = 98pi

Approximate Area = 307.8760800518 (use calculator stored version of pi)

Approximate Area = 307.72 (using pi = 3.14)

Units are in square millimeters

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Explanation:

In 60 seconds, the hand sweeps out a full circle of radius 14. The area of this circle is

A = pi*r^2 = pi*14^2 = 196pi

Half of this is what the hand sweeps out in 30 seconds, so A/2 = (196pi)/2 = 98pi is the exact area it sweeps out. Your calculator would then show 98pi = 307.8760800518 approximately

If instead you use pi = 3.14, then the approximate area is 98*3.14 = 307.72

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ikadub [295]

Answer:

True, false, true, true.

Step-by-step explanation:

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3 years ago

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snow_lady [41]

Answer:

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3 years ago

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

nordsb [41]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

Find the x- and y-intercepts of 3x + 6y = 18

djyliett [7]

In order to find the x and y intercepts of an equation, you can plug in 0 for the opposite variable. Let us solve for the intercepts now.

<span>x-intercept

</span>We are going to plug in 0 for y and the solve for x:

$3x+6y=18$
$3x+6(0)=18$
$3x=18$
$x=6$

So now we know the x-intercept of the line is: (6, 0)
<span>
y-intercept</span>

We are going to plug in 0 for x and solve for y:

$3x+6y=18$
$3(0)+6y=18$
$6y=18$
$y=3$

So now we know that the y-intercept for the line is: (0, 3)

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4 years ago

PLEASE HELP ASAP!!!!!!!!

djverab [1.8K]

Answer:

ur answer would be c because it is the only one with the middle being 3

Step-by-step explanation:

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4 years ago