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2 years ago

The Park Protectors is a group of elementary students and teachers from

Mathematics

2 answers:

tino4ka555 [31]2 years ago

7 0

Answer:

Step-by-step explanation:87

ExtremeBDS [4]2 years ago

7 0

Answer: 70

Step-by-step explanation: i dont really have an explanation but its the right answer

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The formula to find the surface area of a sphere is to take the radius of the sphere and square it and multiply that amount by p

yawa3891 [41]

500=4πr^2. first divide 500 from four which will equal 125, then divide 125 with π and it will equal 39.788 . finally √39.788. the answer will be r=6.3 or 6

8 0

3 years ago

How many times larger is the value of 42.38 compared to 4.238

patriot [66]

Answer:

10 times larger

5 0

3 years ago

Water is added to a cylindrical tank of radius 5 m and height of 10 m at a rate of 100 L/min. Find the rate of change of the wat

nirvana33 [79]

Answer:

$V = \pi r^2 h$

For this case we know that $r=5m$ represent the radius, $h = 10m$ the height and the rate given is:

$\frac{dV}{dt}= \frac{100 L}{min}$

$Q = 100 \frac{L}{min} *\frac{1m^3}{1000L}= 0.1 \frac{m^3}{min}$

And replacing we got:

$\frac{dh}{dt}=\frac{0.1 m^3/min}{\pi (5m)^2}= 0.0012732 \frac{m}{min}$

And that represent $0.127 \frac{cm}{min}$

Step-by-step explanation:

For a tank similar to a cylinder the volume is given by:

$V = \pi r^2 h$

For this case we know that $r=5m$ represent the radius, $h = 10m$ the height and the rate given is:

$\frac{dV}{dt}= \frac{100 L}{min}$

For this case we want to find the rate of change of the water level when h =6m so then we can derivate the formula for the volume and we got:

$\frac{dV}{dt}= \pi r^2 \frac{dh}{dt}$

And solving for $\frac{dh}{dt}$ we got:

$\frac{dh}{dt}= \frac{\frac{dV}{dt}}{\pi r^2}$

We need to convert the rate given into m^3/min and we got:

$Q = 100 \frac{L}{min} *\frac{1m^3}{1000L}= 0.1 \frac{m^3}{min}$

And replacing we got:

$\frac{dh}{dt}=\frac{0.1 m^3/min}{\pi (5m)^2}= 0.0012732 \frac{m}{min}$

And that represent $0.127 \frac{cm}{min}$

5 0

3 years ago

Please help me ‼️I am struggling bad <br> (x2+1)(x3-1)

iris [78.8K]

Answer:

26x²+26

Step-by-step explanation:

3 0

3 years ago

Select the correct answer from each drop-down menu. Consider the table shown. x 1 2 3 4 5 f(x) 8 16 32 64 128 The average rate o

neonofarm [45]

Answer:

(1,3)

Step-by-step explanation:

I hope it will help u all

3 0

3 years ago