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2 years ago

5

Ben takes a 45 minute test. After answering 10 questions, the timer indicates that one-fifth of the total time is up. How much t

ime did Ben take to answer the 10 questions *

1 answer:

TEA [102]2 years ago

5 0

it took Ben 9 minutes to answer 10 questions

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A special liquid is held in a tank described as (x 2 + y 2 ) ≤ z ≤ 1 in a Cartesian coordinate system. Assume that the density o

vivado [14]

Since $\rho=\dfrac mV$ (density = mass/volume), we can get the mass/weight of the liquid by integrating the density $\rho(x,y,z)$ over the interior of the tank. This is done with the integral

$\displaystyle\int_{-1}^1\int_{-\sqrt{1-x^2}}^{\sqrt{1-x^2}}\int_{x^2+y^2}^1(2-z^2)\,\mathrm dz\,\mathrm dy\,\mathrm dx$

which is more readily computed in cylindrical coordinates as

$\displaystyle\int_0^{2\pi}\int_0^1\int_{r^2}^1(2-z^2)r\,\mathrm dz\,\mathrm dr\,\mathrm d\theta=\boxed{\frac{3\pi}4}$

7 0

2 years ago

A sequence can be defined by the explicit formula . Which recursive formula represents the same sequence of numbers?

matrenka [14]

Answer:

c

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

I only need #8, but if you want to do the others you can.

lutik1710 [3]

Ralphs is 7.5x+10
frank’s is 10x

7 0

2 years ago

Read 2 more answers

What is n x 2 squared= 14

zepelin [54]

Answer:

n=3.5

Step-by-step explanation:

2²=4

14÷4=3.5

3.5×4=14

3.5×2²=14

7 0

2 years ago

Help!!!!!!!!!!!!!!!!!!!!!!!!!!

morpeh [17]

Answer:

This might not help but I know 10 to the power of 3 is 1000 and the answer might be 10×10×10. 10×10×10 is equal to 1000 and is the same as 10 to the power of 3.

8 0

2 years ago