a*****g 发帖数: 1320 | 1 A triangle has two sides measuring 4 and 6, respectively
the greatest possible area of the triangle is 12. why?
another one: a box contains 4 cookies, 5 brownies, and 6 doughnuts. two
items are removed from the bag
which probability is greater?
a. the probability that both items are brownies
b. the probability that one item is a cookie and the other is a doughnut
thanks a lot!!! | B******1 发帖数: 9094 | 2 These are so simple.
For the first: 4*6/2 = 12. If you use one side as a base, the biggest height
on that base is 6.
For the second:
a) (5/15)*(4/14)
b) (4/15)*(6/14)
Since 20 is less than 24, b) is greeter.
【在 a*****g 的大作中提到】![](/moin_static193/solenoid/img/up.png) : A triangle has two sides measuring 4 and 6, respectively : the greatest possible area of the triangle is 12. why? : another one: a box contains 4 cookies, 5 brownies, and 6 doughnuts. two : items are removed from the bag : which probability is greater? : a. the probability that both items are brownies : b. the probability that one item is a cookie and the other is a doughnut : thanks a lot!!!
| a*****g 发帖数: 1320 | 3 谢谢,回头发包子。
height
【在 B******1 的大作中提到】![](/moin_static193/solenoid/img/up.png) : These are so simple. : For the first: 4*6/2 = 12. If you use one side as a base, the biggest height : on that base is 6. : For the second: : a) (5/15)*(4/14) : b) (4/15)*(6/14) : Since 20 is less than 24, b) is greeter.
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