Answer: 30 - 4 = 26
Step-by-step explanation:
30 - 2x = 0
so after 2 days he will have done 4 hours so 30 - 4 = 26
The volume of a sphere is given by:

So, we need to deduct this equation. We will walk through Calculus on the concept of a solid of revolution that is a solid figure that is obtained by rotating a plane curve around some straight line (the axis of revolution<span>) that lies on the same plane. We know from calculus that:
</span>
![V=\pi \int_{a}^{b}[f(x)]^{2}dx](https://tex.z-dn.net/?f=V%3D%5Cpi%20%5Cint_%7Ba%7D%5E%7Bb%7D%5Bf%28x%29%5D%5E%7B2%7Ddx)
<span>
Then, according to the concept of solid of revolution we are going to rotate a circumference shown in the figure, then:
</span>

<span>
Isolationg y:
</span>

<span>
So,
</span>

<span>
</span>
![V=\pi \int_{a}^{b}[\sqrt{r^{2}-x^{2}}]^{2}dx](https://tex.z-dn.net/?f=V%3D%5Cpi%20%5Cint_%7Ba%7D%5E%7Bb%7D%5B%5Csqrt%7Br%5E%7B2%7D-x%5E%7B2%7D%7D%5D%5E%7B2%7Ddx)
<span>
</span>

<span>
being -r and r the limits of this integral.
</span>

<span>
Solving:
</span>
![V=\pi[r^{2}x-\frac{x^{3}}{3}]\right|_{-r}^{r}](https://tex.z-dn.net/?f=V%3D%5Cpi%5Br%5E%7B2%7Dx-%5Cfrac%7Bx%5E%7B3%7D%7D%7B3%7D%5D%5Cright%7C_%7B-r%7D%5E%7Br%7D)
Finally:
<span>
</span>

<span>
</span><span>
</span>
Answer:
$(x-100)
Step-by-step explanation:
- Phil entered the poker tournament with $100.
- He received a price of $x.
His net winnings from the tournament will be the price minus the entry fee.
Therefore:
Phil's net winnings=$(x-100)
Answer:
Option b (factor) is the correct choice.
Step-by-step explanation:
ANOVA would be used to assess whenever there were other statistically representative variations seen between results of two or even more individual (totally unconnected) categories.
<u>Two different kinds of independent variables exist such as:</u>
If the explanatory variables are such an effective variable otherwise we modify the argument of the variable to test its effect on something like a specific parameter.
Certain solutions don't apply to the specified scenario. So choice B was its perfect method for that.
Answer:
Hence, the total number of people who chose rap as their favorite kind of music is:
60 people
Step-by-step explanation:
The percentage of people who like different kind of music are given by:
Music Percent
Rock 'n' Roll 28%
Rap 24%
Hip Hop 20%
Jazz 18%
Other 10%
Total number of people who responded to survey=250
Hence, the number of people who chose rap as their favorite music is:
24% of 250
i.e. 24%×250
= 0.24×250
=60
Hence, people who chose rap are:
60 people.