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Jobisdone [24]
3 years ago
12

Help please? 20 points

Mathematics
1 answer:
drek231 [11]3 years ago
7 0

Answer:

125.6637061 or 125.7

Step-by-step explanation:

V=πr²h

Big: π(3)²(5) = 141.3716694

Hole: π(1)²(5) = 15.70796327

   141.3716694

- <u>15.70796327</u>

  125.6637061

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Becca has saved 25% of the money that she needs to buy a new tennis racket. If she has saved $21 jow much money does the tennis
nexus9112 [7]
Let x be the entire portion of the money Becca needs to save to buy a new tennis racket.

So, 0.25x=$21

x=$21/0.25
x=$84

Thus, the total amount she needs to save is $84. Now, we'll deduct 25 from 84 to get the 75 percent or the remaining amount she has to save.

$84-$21=$63

The answer is $63.
6 0
3 years ago
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Dan, Lincoln , and Miguel are pooling their cash to see whether they have enough to buy a game . They have a total of $49.20. Th
neonofarm [45]

Answer:

The answer is google

Step-by-step explanation:

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5 0
3 years ago
What is this number in standard form? (5×1,000)+(9×1)+(2×1/10)+(6×1/1,000)
mr Goodwill [35]

Answer:

5009.206

Step-by-step explanation:

<u>The answer is </u><em><u>5009.206</u></em>. We see that the first portion of this question asks, "(5×1,000)+(9×1)". 5x1000 is 5000. 9x1 is 9. 5000+9= 5009. The second portion of this question asks for the numbers that go after the decimal. 2x1/10 is 2/10. 6x1/1000 is 6/1000. The decimal place stands for one. So we do .206. If the decimal stands for ones that means in this case the 2 is in the tenths place (like it should be since the question asks for 2/10) and the 6 is in the 1000 place (like it should be since the question asks for 6/1000). We add this up together and our answer is 5009.206. Hope this explanation helps! Happy learning!

5 0
2 years ago
The price of an item has been reduced by <br> 45% <br> . The original price was <br> $17
Artist 52 [7]
Price is reduced by 45%. Which means that the new price is 55% of the original.
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8 0
3 years ago
The marketing manager for an automobile manufacturer is interested in determining the proportion of new compact-car owners who w
pshichka [43]

Answer:

Two-tailed test.

Step-by-step explanation:

There are two types of tests:

One-tailed tests and two-tailed tests.

When we only test if the mean is less or more than a value, we have a one-tailed test.

When we test if the mean is different from a value, we have a two-tailed test.

If you were to conduct a test to determine whether there is evidence that the proportion is different from 0.30, which test would you use?

Test if it is different, so a two-tailed test.

4 0
2 years ago
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