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Nat2105 [25]
2 years ago
15

There are two dimes and a nickel in your pocket. You randomly pick a coin from your pocket and place it on the counter. Then you

pick a second coin from your pocket.
Mathematics
1 answer:
Sidana [21]2 years ago
8 0

Answer:

each coin has a 1/3% chance of being picked

Step-by-step explanation:

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Multiply (simplest form) <br> 6x^2/x(x-3)•(x-3)/10(x+2)
schepotkina [342]

Answer:

\frac{3x}{5(x+2)}

Step-by-step explanation:

Rewrite the division as a fraction.

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I need help please!!<br> A B C or D??
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Tpy6a [65]

Answer:

-5/3

Step-by-step explanation:

Do PEMDAS

8 - 11 = -3

-3 ^ 3 = -27

-(-27) = 27

I-14I = 14

3 x 14 = 42

27 - 42 = -15

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1 year ago
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How cos π/3=1/2?<br>having some problems learning continuity.
Bingel [31]

You can show that \cos\frac\pi3=\frac12 by constructing a triangle.

Take two points, O(0, 0) and A(1, 0), and let B be the point on the unit circle such that the angle between the line segments OA and OB is \frac\pi3 radians.

Since both A and B lie on the circle, the line segments OA and OB both have length 1 (same as the circle's radius). We finish constructing the triangle by connect A and B.

Since OB and OA have the same length, triangle OAB is isosceles, but more than that, it's also equilateral. Why? Because the interior angles of any triangle always add to \pi radians. We know one of the angles is \frac\pi3 radians, which leaves a contribution of \frac{2\pi}3 radians between the remaining angles A and B. Angles A and B must be congruent (because OAB is isosceles), which means they also have measure \frac\pi3 radians.

Next, draw an altitude of the triangle through point B, and label the point where it meets the "base" OA, C. Since OAB is equilateral, the altitude BC is also a perpendicular bisector. That means OC has length \frac12, and by definition of \cos we have

\cos\dfrac\pi3=\dfrac{OC}{OB}=\dfrac{\frac12}1=\dfrac12

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3 years ago
PLEASE !!! HELP QUICKLY !!!
lisov135 [29]

Answer:

1 Year & 14.99%

Step-by-step explanation:

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