Why is the number 22 so good at dancing?

Mathematics

1 answer:

Rashid [163]3 years ago

3 0

Answer:

Hello There!!

Step-by-step explanation:

...because it has tu tus,tu tus!!......lol

hope this helps,have a great day!!

~Pinky~

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Hi can someone check my answers please

algol13

The top one should be 14x - 2. Otherwise, everything else looks correct.

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3 years ago

Calculate the volume of water in the cup when it is full

maxonik [38]

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,

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

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So, the volume of the water is:

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

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7 0

1 year ago

Quinn leaves her house at 10:00 am and runs 3 miles at a steady pace of 6 miles per

bogdanovich [222]

Using the relation between velocity, distance and time, it is found that Quinn returns home at 1 pm.

Velocity is distance divided by time, that is:

$v = \frac{d}{t}$

She walked 3 miles at a velocity of 6 miles per hour, thus $d = 3, v = 6$ . The time is:

$v = \frac{d}{t}$

$t = \frac{d}{v} = \frac{3}{6} = 0.5$

Thus, she arrived at 10:30 am, and took a lunch break of 1 hour, so she started to return at 11:30 am.
Distance of 3 miles, velocity of 2 miles per hour, thus $d = 3, v = 2$ . The time she took to return, in hours, is: