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1. ### Need help ?

...2hv * dh/dt h^2 = 81 h = 9 1620 = 81 * v 20 = v dV/dt => 9^2 * 0.006 cm ^3/hr + 2 * 9 * 20 * 0.003 cm ^3/hr => 0.003 * (2 * 9^2 + 2 * 9 * 20) cm ^3/hr...

1 Answers · Science & Mathematics · 03/06/2020

2. ### Determine the volume and the surface area of the​ three-dimensional figure.  Use the π key on your calculator.?

Volume of a sphere = (4/3)πr³ = (4/3)π(d/2)³ = πd³/6 =  π(6 cm )³/6 = 113.10 cm³ Surface area of sphere = 4πr² = 4π(d/2)² = πd² = π(6 cm )² = 113.10 cm²

1 Answers · Science & Mathematics · 12/08/2020

3. ### One of the triangles sides lays on the diameter of the circle which is 12cm. Find the area of the shaded region (gray)​?

... is a radius, so is half of 12'.  A = 36  cm ^2  A(circle)  = pi r^2 = pi 6^2  A = 3.141592.... X 36  ...

2 Answers · Science & Mathematics · 26/04/2020

4. ### please be hurry. calculus test problem?

...25h/14)^2 = (3.25^2/588)*pi*h^3. dV/dh = (3.25^2/196)*pi*h^2. dh/dt = 15 cm /min => dV/dt = (dV/dh)*(dh/dt) = (3.25^2/196)*pi*(200 cm )^2*15 cm ...

1 Answers · Science & Mathematics · 29/02/2020

5. ### Helppppppppp?

...dr  =12pi(r_outer)   dV/dt = dV/dr * dr/dt   so when r_outer = 4.5 cm   dV/dr = 12pi(4.5) = 54pi  cm ^3/ cm   dr/dt =   0.04  cm /hour  dV...

2 Answers · Science & Mathematics · 03/06/2020

6. ### can some one pls help me with this maths Question?

y(0)= 161, y(2)= h a. y(7)= 1.20h b. m= (1.20h - h)/(7 - 2)= 0.04h c. y= 0.04h*x + 161 d. h= 0.04h*2 + 161 0.92h= 161; h=175 cm

1 Answers · Science & Mathematics · 09/11/2020

7. ### A belt is stretched tightly over two wheels having a radii of 1 and 5 inches, respectively. If the center of the wheels...?

....org/content-standards/tasks/621  but replace 5cm, 3cm 14 cm by 5 inches, 1 inch, 8 inches One straight section is...

3 Answers · Science & Mathematics · 03/06/2020

8. ### Please answer this question with explain?

The exact perimeter of a square whose side length is 5 3√16 cm is 240 cm .

2 Answers · Science & Mathematics · 19/11/2020

9. ### Determine the area of the triangle.?

The area of the triangle is 117 cm ^2.

5 Answers · Science & Mathematics · 19/08/2020

10. ### what is the area of this triangle?

...right-angled triangle: h/4.7 = sin(32º) h = 4.7sin(32º) = 2.49 cm Area of  ΔABC = ½ x base x height = ...

6 Answers · Science & Mathematics · 13/01/2020

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