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ASHA 777 [7]
3 years ago
8

An election ballot asks voters to select two city commissioners from a group of four candidates. In how many ways can this be do

ne?
Mathematics
1 answer:
DanielleElmas [232]3 years ago
8 0
Let n = 12
Let r = 6
Replace every n! with 12 and every r! with 6 and then do the math.
nCr = 12!/[(12 - 6)!*6!]
nCr = 479001600/(720)(720)
nCr = 479001600/518400
nCr = 924
There are 924 ways or combinations to select 6 city commissioners from a group of 12 candidates
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The Stock Market Nadia is a stockbroker. She earns 14% commission each week. Last week, she
saveliy_v [14]

Answer:

a). Nadia made a total of $825 last week in commission sales

b). The total amount Nadia in commission in 2011=$42,900

Step-by-step explanation: Total amount (2011)=Average weekly commission × number of weeks in 2011  where;  Average weekly commission=$825  number of weeks in 2011=52  replacing;  Total amount (2011)=(825×52)=42,900 . The total amount Nadia in commission in 2011=$42,900.

7 0
3 years ago
Zoe wants to make a driveway.
-Dominant- [34]
Well the volume of dirt she needs to remove is equal to length*width*height=6.2*4.9*0.225=6.8355

Now let's find how many bags she needs.

To solve for this, simply divide room in bags from total room.
6.8355/0.87=7.857

Thus Zoe has barely enough, but enough bags.
6 0
3 years ago
For f(x) = 0.02(2)^x find the average rate of change from x= 3 to x= 8
Fudgin [204]

None of the offered choices is correct.

f(3) = 0.02·2³ = 0.02·8 = 0.16

f(8) = 0.02·2⁸ = 0.02·256 = 5.12

Then the average rate of change is

... (f(8) - f(3))/(8 - 3) = (5.12 -0.16)/5 = 4.96/5 = 0.992

5 0
3 years ago
This question has two parts. First, answer Part A. Then, answer Part B.
masya89 [10]

Answer:

$10.12

Step-by-step explanation:

Step one:

given data

we are told that the cost of binoculars is $155.75

and also the sales tax is 7%

Step two:

We want to first solve for the sales tax which is 7% of  $155.75

=7/100* 155.75

=0.070*155.75

=10.12

Cassie will pay a tax of $10.12

Also Cassie will pay a total amount of

= 155.75+10.12

=$165.87

3 0
2 years ago
176.625 rounded to the nearest tenth​
4vir4ik [10]

Answer:

176.6

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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