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2 years ago

Evaluaté p/4+pq when p=8 and q=6

Mathematics

2 answers:

dusya [7]2 years ago

4 0

So the right answer is 50.

Look at the attached picture

Hope it will help you....

Good luck on your assignment

~pragya

Alexxandr [17]2 years ago

4 0

Answer: 50

Step-by-step explanation:

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An aquarium 2 m long, 1 m wide, and 1 m deep is full of water. Find the work (in J) needed to pump half of the water out of the

Nitella [24]

Answer:

$W=2452.5 J$

Step-by-step explanation:

The work is define as the integral of the force times distance. So we have:

$W=\int^{a}_{b}Fxdx$

Now, we can write the force in terms of density.

$F=m*g=\rho Vg$

V is the volume (V=2*1*1=2 m³)

So the work will be:

$W=\int^{0.5}_{0} 2*1000*9.81*xdx=\int^{0.5}_{0} 2*1000*9.81*xdx=\int^{0.5}_{0}19620xdx=19620(\frac{x^{2}}{2})|^{0.5}_{0}$

The limit of integration is between 0 and 0.5 because we want to pump half of the water out of the aquarium.

$W=19620(\frac{x^{2}}{2})|^{0.5}_{0}=19620(\frac{0.5^{2}}{2})$

$W=2452.5 J$

I hope it helps you!

8 0

2 years ago

What are the next two numbers in this pattern? 3, â9, 27, â81, . . ?

hjlf

729, â6561 is the answer

4 0

3 years ago

Can someone help me out with this at all?

dsp73

Answer:

1 maps to 1

2 maps to 3

3 maps to 2

Step-by-step explanation:

the correctly assigned answer options describe everything.

there is not much else to say and explain.

these are all true statements due to the symmetry principle of a circle.

when 2 direct connections of two points on the circumference of a circle have the same length, then also their bent distances on the circumference of the circle are the same. and vice versa.

and yes, the perpendicular radius (or diameter) of the circle towards such a line cuts this line in half.

6 0

3 years ago

Raul has 40 toy cars in his collection.

rosijanka [135]

Answer:

Step-by-step explanation:

40-1-2=37 silver cars

6 0

3 years ago

What percent of 55 is 44?

shepuryov [24]

125% maybe i don’t know for sure

3 0

2 years ago