3 years ago

A time capsule was sealed in 1940 and will be opened on the same date in 2018.How long will the time capsule remain sealed

Mathematics

1 answer:

Ludmilka [50]3 years ago

6 0

It would be about 76 years.

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Please Answer This, the question is on the picture. it needs to be a fraction

tino4ka555 [31]

Answer:

x = 33

Step-by-step explanation:

sin 29° = 16/x

x = 33

7 0

3 years ago

A certain number added twice to itself equals 96.what is the number?

irina1246 [14]

Your answer is 48, because 96/2 is 48

Hope this helps

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3 years ago

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write and solve an equation to show thw average number of calendars her 3rd period class sold peer week during the four week cha

kari74 [83]

If they sold 89 calendars over 4 weeks, the 'equation' would look like (x = average calendars sold over 4 weeks):
$x = \frac{89}{4}$

If you solve it, you get:
$22 \frac{1}{4}$

Which is equal to 22.25. Hope this helps!

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3 years ago

How much this will be ......evaluate -4 (9)(-5)

klemol [59]

-4(9)(-5) = (-36)(-5) because -4(9) = -36. (-36)(-5) = 180

3 0

3 years ago

Gravel is being dumped from a conveyor belt at a rate of 30 ft3/min, and its coarseness is such that it forms a pile in the shap

pogonyaev

Answer:

Rate of increase in height = $\frac{dh}{dt}=0.3156ft/min$

Step-by-step explanation:

we know that volume of a cone is given by

$V=\frac{1}{12}\pi d^{2}h$

It is Given that diameter equals height thus we have

$V=\frac{1}{12}\pi h^{2}h\\\\V=\frac{1}{12}\pi h^{3}$

Differentiating both sides with respect to time we get

$\frac{dV}{dt}=\frac{1}{12}\pi \frac{dh^{3}}{dt}\\\\\frac{dV}{dt}=\frac{1}{12}\pi(3h^{2}\frac{dh}{dt})$

Applying values and solving for $\frac{dh}{dt}$ we get

$\frac{dh}{dt}=\frac{12\frac{dV}{dt}}{3\pi h^{2}}\\\\\frac{dh}{dt}=0.3156ft/min$

8 0

3 years ago