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dem82 [27]
2 years ago
14

Consuelo and James are writing an algebraic expression for three times the sum of n squared and 3. Is either of them correct?

Mathematics
1 answer:
Artyom0805 [142]2 years ago
8 0

<u>Yes the first one is correct because n squared is n with the 2 above it and adding it to three gets your first answer and then the three on the outside means to multiply so your first response is correct.</u>


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A city distributes vehicle identification stickers using a combination of letters followed by a combination of​ digits, each of
gayaneshka [121]
A) 672750
B) 68250
C) 2960100

Explanation
A)  We have 26 letters from which to choose 4, and 10 digits from which to choose 2:
_{26}C_4\times_{10}C_2=\frac{26!}{4!22!}\times\frac{10!}{2!8!}=14950\times45=672750

B) We have 26 letters from which to choose 2, and 10 digits from which to choose 4:
_{26}C_2\times_{10}C_4=\frac{26!}{2!24!}\times\frac{10!}{4!6!}=325\times210=68250

C) We have 26 letters from which to choose 5, and 10 digits from which to choose 2:
_{26}C_5\times_{10}C_2=\frac{26!}{5!21!}\times\frac{10!}{2!8!}=65780\times45=2960100
5 0
2 years ago
The game of roulette involves spinning a wheel with 38 slots: 18 red, 18 black, and 2 green. A ball is spun onto the wheel and w
antiseptic1488 [7]

Answer:

in steps

Step-by-step explanation:

If it is a fair roulette, the probability to land on RED should be the same no matter what results are in the previous spin

a) 18/38

b) 18/38

c) Yes, I'm confident of the answers. Because it's fair and there is no change of RED numbers.

8 0
2 years ago
James works as a waiter. He served meals with bills of $23.59, $40.65, $30.50, and $15.68. If his total for tips was $17.67, wha
mr_godi [17]
<span><span>1.       </span>James works as a waiter.
He served food with the following price
=> 23.59 dollars
=> 40.65 dollars
=> 30.50 dollars
=> 15.68 dollars
Let’s add this altogether:
=> 23.59 + 40.65 + 30.50 + 15.68
=> 110.42 the total of the ordered food.
Now, James received a tip of 17.67 dollars. Find the interest rate of his tip.
=> 110.42 * .50 = 55.21, thus the interest rate of tip is less than 50%
=> You can do trial and error to get the correct rate,
=> 110.42 * .16 = 17.67, thus he received 16% tip</span>



3 0
2 years ago
Read 2 more answers
1. A bicycle that normally sells for $150 is on sale of 35% off. What is the sale price of the bicycle?
Ivan

Answer:

The sale price would be $102.50

Step-by-step explanation:

To find this amount, start by multiplying the price by the sale percentage,

$150 * 35% = $47.50

Now subtract that amount from the original.

$150 - $47.50 = $102.50

4 0
2 years ago
Help me pleaseeee!!!!!
Julli [10]

Because she needs 3 blankets and it takes 15 day per blanket(rate is given), she needs 3x15 or 45 days. She has 60 days so she can volunteer at most 15 days.

answer: s≤15

4 0
2 years ago
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