a) add the probability for drawing a dime and drawing a quarter together: 12/30 + 4/30 = 16/30 = 8/15 The probability is 8/15 or 53%
b) multiply the probability for drawing a penny and drawing a nickel: 6/30 x 12/30 = 72/900 = 2/25 The probability is 2/25 or 8%
c) multiply the probability for drawing quarters but take away one of the total coins and the amount of quarters each time: 4/30 x 3/29 x 2/28 = 24/24360 = 1/1015 The probability is 1/1015 or 0.099%
The sector is ; there are 360 degrees in a circle. You use the formula . 18cm is the radius, and then you square it to get 324. Multiply 324 by You get 63
; there are 360 degrees in a circle.
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