4:30 lesson start lesson is 50 minutes long. When did lesson end

Mathematics

1 answer:

Degger [83]4 years ago

5 0

If you add 50 minutes to 4:30, it will becomes 5:20.

The lesson ended at 5:20.

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I need help, i get like 4712, but its not an answer

ella [17]

So you will need to find the height, and we can do so by using the pythagorean theorem, which is $leg^2+leg^2=hypotenuse^2$ . Using this formula, we can make the equation $15^2+h^2=25^2$

Firstly, solve the exponents: $225+h^2=625$

Next, subtract 225 on both sides: $h^2=400$

Lastly, square root both sides, and your answer is h = 20.

Now that we got the height, we can solve for the volume, which is $V=\pi r^2\frac{h}{3}$ . Using this formula, we can form our equation to be $V=\pi 15^2\frac{20}{3}$

Firstly, solve the exponent: $V=\pi*225*\frac{20}{3}$

Next, multiply 225 and 20/3, and your answer will be V = 1500π, or the third option.

7 0

3 years ago

The diameter of a circle is 20m. Find its area in terms of pie(urgent)

Alona [7]

Answer:

100 pie m^2

$solution \\ diameter = 20 \: m \\ radius = \frac{20}{2} = 10 \: m \\ area \: = \pi \: {r}^{2} \\ \: \: \: \: \: \: \: \: \: \: \: = \pi \times {10}^{2} \\ \: \: \: \: \: \: \: \: \: \: = \pi \times 100 \\ \: \: \: \: \: = 100\pi \: {m}^{2} \\ hope \: it \: helps....$