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stellarik [79]
2 years ago
10

Pls answer this question

Mathematics
1 answer:
inn [45]2 years ago
3 0

Answer:

1.9391 is ur questions answer

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Calculate the volume of water in the cup when it is full
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To find:

The volume of the water in the cup when it is full.

Solution:

The volume of the water is equal to the difference of the volume of the small cone and the larger cone.

Here, the ratio of the radius of both cones is equal to the ratio of their heights. SO,

\begin{gathered} \frac{r}{2.7}=\frac{20}{20-8} \\ \frac{r}{2.7}=\frac{20}{12} \\ \frac{r}{2.7}=\frac{5}{3} \\ r=4.5 \end{gathered}

The radius of the larger cone is 4.5 cm.

So, the volume of the water is:

\begin{gathered} V=\frac{1}{3}\pi R^2H-\frac{1}{3}\pi r^2h \\ =\frac{1}{3}\pi(R^2H-r^2h) \\ =\frac{1}{3}\pi((4.5)^2(20)-(2.7)^2(12)) \\ =\frac{1}{3}\cdot\frac{22}{7}(405-87.48) \\ =\frac{22}{21}(317.52) \\ =332.64cm^2 \end{gathered}

The volume of water when the cup is full is 332.64 cm^2.

7 0
1 year ago
What is 4 to the third power? Plzzzzzzz help meeeeee!!!!
Evgesh-ka [11]

Answer:

64

Step-by-step explanation:

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4 · 4 · 4

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34 out of 99 how do you turn those in a decimal
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Answer:

o.3434343434343434343434343... (basically 0.34 with the bar over 34 to indicate it is repeating)

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Evaluate 12x−3y12x−3y when x=−14x=−14 and y=3<br> Help.
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12x-3y12x-3y                             (x=-14x=-14 or x=1) and( y=3)
12(1)-3(3)12(1)-3(3)
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