Answer:
A box contains 5 green pencils and 7 yellow pencils.
Two pencils are chosen at random from the box without replacement.
=> There are two cases:
1st pick green & 2nd pick yellow: P = 5/12 x 7/11 = 0.265
1st pick yellow & 2nd pick green: P = 7/12 x 5/11 = 0.265
Add up both cases, the probability they are different colors:
P = 0.265 + 0.265 = 0. 53
Hope this helps!
:)
Answer:
SA=276
Step-by-step explanation:
Formula for rec. prism= 2(lw)+2(hl)+2(hw)
220 = SA for the bottom rectangular prism
56 = SA for the top figure
220+56=276
SA=276cm
Answer:
81.64 meters
Step-by-step explanation:
The formula for circumference is C=2πr. In your case, you will use 3.14 instead of π. The diameter is 26m, which should be divided by 2 to get the radius.
26/2=13
Then, plug everything in the formula:
C=2×3.14×13
C=81.64m
Answer:
$4.81
Step-by-step explanation: