Answer:
b. 56
Step-by-step explanation:
Please consider the complete question.
There are 8 members on a board of directors. If they must form a subcommittee of 3 members, how many different subcommittees are possible?
We will use combinations for solve our given problem.
, where,
n = Number of total items,
r = Items being chosen at a time.
For our given scenario 
and 
.
Therefore, 56 different subcommittees are possible and option 'b' is the correct choice.
Answer:
I think the answer is B. Decreased only
Cate earns $20 per hour, so we are looking for the number of hours: 20x
Cate pays $1.50 for the bus each way, implying that she rides the bus twice in a day: 3
Cate must end up with $117: 117
117 = 20x + 3
114 = 20x
x = 5.7 hours
Cate must work 5.7 hours to end up with $117.
Hope this helps!! :)
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The llike terms are {17xy^2, -13xy^2} {9, 3} {8y^3, -6y^3} {10x, -9x} first combine 9 and 3 now your new equation is 12 <span>+ 17xy^2 + 8y^3 + 10x –13xy^2 – 9x – 6y^3 then add 17xy^2 and -13xy^2 your new equation is 12 + 4xy^2 </span><span>+ 8y^3 + 10x – 9x – 6y^3 now combine 8y^3 and 6y^3 your new equation is 12 + 4xy^2 + 2y^3 </span><span>+ 10x – 9x now combine 10 and -9x and your answer is </span><span><span>12 + 4xy^2 + 2y^3 <span>+ x</span></span> </span>
