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marysya [2.9K]
2 years ago
10

Can someone help me with this

Mathematics
1 answer:
zubka84 [21]2 years ago
8 0

Answer:

qr=1.3

Step-by-step explanation:

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15. The height and yolume of a cylinder are 4cm and 616cm respectively. Calculate the diameter of the base. (take t = 27 쪽 A. 7c
irakobra [83]

Step-by-step explanation:

Given that,

  • Height of cylinder = 4 cm
  • Volume of cylinder = 616 cm³

To find,

  • Diameter of the base = ?

Firstly we'll find the base radius of the cylinder.

\longmapsto\rm{V_{(Cylinder)} = \pi r^2h}\\

<u>Accordi</u><u>ng</u><u> </u><u>to</u><u> </u><u>the</u><u> </u><u>qu</u><u>estion</u><u>,</u>

\longmapsto\rm{616= \dfrac{22}{7} \times r^2 \times 4}\\

\longmapsto\rm{616 \times 7 = 22 \times r^2 \times 4}\\

\longmapsto\rm{4312 = 88 \times r^2 }\\

\longmapsto\rm{\cancel{\dfrac{4312}{88}} =  r^2 }\\

\longmapsto\rm{49 =  r^2 }\\

\longmapsto\rm{\sqrt{49} =  r }\\

\longmapsto\rm{7 \; cm =  r }\\

Now,

\longmapsto\rm{Diameter = 2r }\\

\longmapsto\rm{Diameter = 2(7 \; cm) }\\

\longmapsto\bf{Diameter = 14 \; cm}\\

The required answer is 14 cm.

4 0
3 years ago
(PLS HURRY ASAP 100 POINTS)
Sophie [7]

Answer:

  • D) 0.3125

====================

Total number of outcomes is 16, count of all outcomes.

Number of outcomes with 3 or more tiles is 5:

  • HTTT, THTT, TTHT, TTTH, TTTT

The probability is:

  • P = favorable outcomes / total outcomes
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Correct choice is D.

6 0
1 year ago
How would you convert an angle in degrees to an angle in radians?
Scilla [17]
For reference, one full circle is 360 degrees or 2pi radians.

If we were to convert 360 degrees to radians, we could set up the following equation:

360k = 2pi

where k is a constant. By solving for k, we can find what value we must multiply any angle in degrees by to get its radian counterpart.

Divide both sides by 360:

k = 2pi/360

Reduce:

k = pi/180

So to convert an angle from degrees to radians, multiply it by pi/180. For example, 120 degrees would be:

120 * pi/180 = 2pi/3 radians
6 0
3 years ago
Brainliest + 20 points to whoever helps!!!
Darya [45]

Answer:

D. The standard deviation is known and n > 30.

Step-by-step explanation:

  • Your sample size is greater than 30.
  • Data points should be away from each other.
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  • Your data should be randomly picked from a population. Each item should have an equal chance of being selected.
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8 0
3 years ago
Please help! I need help on this one!
gregori [183]

Answer:

-4< (with line underneath) x <(with line underneath) 4

Step-by-step explanation:

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