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Jet001 [13]
4 years ago
8

How many different 4-letter radio station call letters can be made if repeats are allowed and the first letter must be k?

Mathematics
1 answer:
Evgen [1.6K]4 years ago
3 0
The first letter has to be a k, so the first letter only has one option.
The second letter can be any letter, so there are 26 options. This is the same for the third and fourth letter as well.
To find all possible options, you must multiply all of these "options" together.
1•26•26•26=17576
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The product of x and the sum of 6 and 8 times the square of x
Vaselesa [24]

Answer:

x(6 + 8x²) or 6x + 8x³.

Step-by-step explanation:

"The square of x" can be represented by x² and 8 times that would be 8 * x² or 8x². The sum of 6 and 8x² can be represented by 6 + x² and the product of x and 6 + x² can be represented by x * (6 + 8x²) or x(6 + 8x²) which simplifies to 6x + 8x³.

7 0
3 years ago
Read 2 more answers
Hi help meeeeeeee please i will mark you brainiest if you can answer this
Roman55 [17]

Answer:

Step-by-step explanation:

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8 0
3 years ago
A plumber has a a 36-in. pipe. He must cut it into two pieces so that one piece is 14 inches longer that the other. How long is
irakobra [83]
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4 0
4 years ago
Karen makes $5 per hour baby-sitting and $12 per hour giving music lessons. one weekend, she worked a total of 18 hours and made
Elis [28]

Let the number of hours she spent in baby- sitting is x

and the number of hours she spent in music lessons is y.

Now, we have been given that she worked a total of 18 hours. Hence, we have

x+y=18\\
y=18-x...............................(1)

And she made $139. Thus, we have

5x+12y=139..............................(2)

Substituting the value of y from equation 1 in 2, we get

5x+12(18-x)=139\\
5x+216-12x=139\\
-7x=-77\\
x=11

Therefore, she spent 11 hours in baby-sitting.

4 0
4 years ago
Please help, I am very confused
Zanzabum
Answer: 0.8

The volume is 8/45 so a•b•c=8/45

So 2/3•1/3•a=8/45

Multiply 2/3•1/3=0.222222 or 2/9
So 2/9•a=8/45

Divide 8/45 / 2/9= 0.8
a=0.8

Hope this makes sense and it helps!!

7 0
3 years ago
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