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2 years ago

How do you find the volume of a cylinder, cone or sphere

Mathematics

1 answer:

nata0808 [166]2 years ago

8 0

Answer:

Step-by-step explanation:

Cone. The volume of a cone is linked to the volume of a cylinder. A cone is one third of the volume of a cylinder. ...

Sphere. The volume of a sphere is ⁴/₃ × π × r³. ...

Cylinder. The volume of a cylinder is π × r² × l (r is the radius of the circle and l is the length of the cylinder).

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Jackson's mom limits the amount of time he is allowed to play video games. after Jackson plays for 9 minutes, his mom tells him

ValentinkaMS [17]

First off Jackson's mom sucks for limiting game time and second of the answer is 30 minutes. If 9 is 30 percent that means 3 is 10 percent. 3 times 10 is 30. So 30 minutes

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2 years ago

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If cos theta=-2/3, which of the following are possible (Help asap)

alexgriva [62]

Answer:

The correct option is B) $sin\theta=\frac{\sqrt{5}}{3}$ and $tan\theta=\frac{\sqrt{5}}{2}$

Step-by-step explanation:

given $cos\theta=-\frac{2}{3}$

Since, $cos\theta=\frac{base}{hypoteneous}$

it means prependicular of right angled triangle can be calculated by pythagoras theorem as:

base² + prependicular² = hypoteneous²

2² + prependicular² = 3²

4 + prependicular² = 9

prependicular² = 9 - 4

prependicular² = 5

prependicular = √5

Since, $sin\theta=\frac{prependicular}{hypoteneous}$

$sin\theta=\frac{\sqrt{5}}{3}$

Since, $tan\theta=\frac{prependicular}{base}$

$tan\theta=\frac{\sqrt{5}}{2}$

Hence, the correct option is B) $sin\theta=\frac{\sqrt{5}}{3}$ and $tan\theta=\frac{\sqrt{5}}{2}$

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3 years ago

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PLEASE HELP WILL MARK AS BRAINLIEST

AveGali [126]

Answer:

$\boxed{\bold{\huge{\boxed{Area\ of\ Trapezium = 150\ cm\²}}}}$

Step-by-step explanation:

Using Pythagorean Theorem first to find EC

$\sf CB^2 = EB^2+EC^2\\Where \ CB = 13 \ and \ EB = 5 \\13^2 = 5^2 + EC^2 \\169 - 25 = EC^2 \\EC^2 = 144\\Taking \ sqrt \ on \ both \ sides\\EC = 12 \ cm$

Given that:

AE = EC

AE = 12 cm

Now,

AB = AE + EB

AB = 12 + 5

AB = 17 cm

ABCD is a trapezoid / trapezium

So,

Area of Trapezium = $\sf \frac{AB+DC}{2} (EC)$

Where AB = 17 , DC = 8 and EC = 12

Area of Trapezium = $\sf \frac{17+8}{2} ( 12)$

Area of Trapezium = (25)(6)

Area of Trapezium = 150 cm²

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3 years ago

14) For the situation below determine the independent value, the dependent value, and the constant of proportionality for both r

Firlakuza [10]

Answer:

The independent variable is number of minutes and the dependent variable is number of miles. Constant of proportionality is 1.2 because 9.6/8=1.2 and 18/15=1.2

Step-by-step explanation:

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3 years ago

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raketka [301]

Answer:

$631.68

Step-by-step explanation:

first times number by .20 do find how much 20% is ($105.28). then add that too recuded number to find the anwser.

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3 years ago

How do you find the volume of a cylinder, cone or sphere ​

How do you find the volume of a cylinder, cone or sphere