Answer:
(E) 1/5
Step-by-step explanation:
The probability that Harry will be chosen to be the secretary but not the president is
The probability that Harry will be chosen to be the treasurer but not the president or secretary is
Thus, the probability that Harry will be either the member chosen to be the secretary or the member chosen to be the treasurer is
Answer:
5
Step-by-step explanation:
Oh boy. I don't know how to solve this off the top of my head so this answer may ramble a bit as I figure it out as I go along.
At least two numbers have to be close in value, one positive and one negative, in order for a+b+c to be true
Let's see, ABC=-12
If one letter was 4, 1, and -3 they would add to 2 and multiply to -12. I got these by just trying a bunch of combinations.
I'm pretty sure these are the right numbers, but which is which we need the AB+BC+AC formula to figure out.
IF: a=4 b=1 c=-3
4 -3 -12 = -11. Wow, first try, for reals!
A equals 4. B=1. C=-3
Would other combinations work?
a=1 b=-3 c=4
-3 + -12 + 4 = -11
Yes, other combinations work as well. Well, you have your numbers and two ways they can go. Hope this helps!
Question:
The area of a rectangular computer chip is 112a^3b^2 square microns. Write a simplified expression that represents the length, if the width is 8ab
Answer:
Step-by-step explanation:
Given
Required
Determine the height
Area is calculated as:
Make Length the subject
Apply law of indices
8 + 13 + 14 + 7 = 42
Chinese = 8/42
Simplified = 4/21