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Paraphin [41]
3 years ago
6

You bought a magazine for $5 and four erasers. You spent a total of $25. How much did each eraser cost?

Mathematics
1 answer:
Novay_Z [31]3 years ago
7 0
Well all you would have to do is subtract 25 to 5 which is 5 so $20 is how much
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If r = 11 units and h = 8 units, then what is the volume of the cylinder shown above?
zhenek [66]

Answer:

  968π ≈ 3041 . . . cubic units

Step-by-step explanation:

The usual formula for the volume of a cylinder is ...

  V = πr²h

For your given dimensions, the volume is found by putting the values into the formula and doing the arithmetic.

  V = π(11²)(8) = 968π . . . . cubic units

 V ≈ 3041 cubic units

6 0
3 years ago
Carla has a dog walking service and makes $9 for every day works walking dogs. One week, she was sick and could only walk the do
Alexeev081 [22]

Answer: 18+36=$54

Step-by-step explanation: The first week that she was sick, she walked dogs 2 times, meaning she would earn $18 (2*9=18).

The second week when she walked dogs 4 times, she'd earn $36 (4*9=36).

5 0
3 years ago
Determine whether the series is convergent or divergent by expressing sn as a telescoping sum (as in Example 8). [infinity] 6 n2
vekshin1

Answer:

Step-by-step explanation:

given

\sum\limits^\infty_{n=3}\frac{6}{n^2-1}=\sum\limits^\infty_{n=3}\frac{6}{(n-1)(n+1)}\\\\=\sum\limits^\infty_{n=3}\frac{6}{2}(\frac{1}{n-1}-\frac{1}{n+1})\\\\=\frac{6}{2}\sum\limits^\infty_{n=3}(\frac{1}{n-1}-\frac{1}{n+1})\\\\=3[(\frac{1}{2}-\frac{1}{4})+(\frac{1}{3}-\frac{1}{5})+(\frac{1}{4}-\frac{1}{6})+(\frac{1}{5}-\frac{1}{7})+...]\\\\=3[\frac{1}{2}+\frac{1}{3}]=3[\frac{3+2}{6}]=3[\frac{5}{6}]\\\\=\frac{15}{6}=\frac{5}{3}

5 0
3 years ago
When factored completely, <br> X^3-7x^2-30x
sweet-ann [11.9K]

Answer:

x(x+3)(x−10)

Step-by-step explanation:

Hope this was helpful let me know if it was!

5 0
3 years ago
Which phrase describes the pattern? 1, 3, 11, 123,...
Monica [59]
D) square the number and add 2
7 0
3 years ago
Read 2 more answers
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