Show 53 in 10's and 1's?

Mathematics

1 answer:

Lana71 [14]3 years ago

8 0

53 is 5 tens and 3 ones

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Please help! So confused. "Explain how calculating your car's displacement relates to the formula for the volume of a cylinder.

maks197457 [2]

<span>Displacement is closely related to the volume of each cylinder. The radius should be squared and multiplied by Pi (3.14) and then multiplied by the height of the cylinder to calculate the volume of each cylinder. This value can then be multiplied by the number of cylinders to find the total displacement.</span>

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3 years ago

Solve this

ValentinkaMS [17]

$\sqrt{33 + \sqrt{4 + \sqrt{50 \cos(60°) } } }$

Now, we know cos(60°) = $\frac {1}{2}$ . So put the value there.

$\sqrt{33 + \sqrt{4 + \sqrt{50 \times \frac{1}{2} } } } \\ = \sqrt{33 + \sqrt{4 + \sqrt{25} } } \\ = \sqrt{33 + \sqrt{4 + 5 } } \\ = \sqrt{33 + \sqrt{9} } \\ = \sqrt{33 + 3} \\ = \sqrt{36} \\ = 6$

Hence LHS = RHS [Proved]

Hope you could understand.

If you have any query, feel free to ask.

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3 years ago

A ceiling fan with 16-in. blades rotates at 45 rpm.

Kobotan [32]

A. We're told the fan completes 45 full revolutions every minute. One full revolution is $2\pi\,\mathrm{rad}$ , so the fan has an angular speed of

$\dfrac{2\pi\,\mathrm{rad}}{1\,\mathrm{rev}}\cdot\dfrac{45\,\mathrm{rev}}{\mathrm{min}}=90\pi\dfrac{\rm{rad}}{\rm{min}}$

B. Throughout one full revolution of the fan, a point at the tip of one of the fan's blades travels the circumference of a circle with radius 16 in. The circumference is then $2\pi(16\,\mathrm{in})=32\pi\,\mathrm{in}$ . This means the linear speed is