175 pairs of skates are rented for 7 hours.
Step-by-step explanation:
Given,
Pairs of skated rented each hour = 25
Let,
Number of hours = h
Total pairs rented = T
T = Pairs rented each hour * number of hours
T = 25h
Evaluate the expression for 7 hours.
h = 7
![T=25(7)\\T=175](https://tex.z-dn.net/?f=T%3D25%287%29%5C%5CT%3D175)
175 pairs of skates are rented for 7 hours.
Keywords: multiplication, linear expression
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Answer: 23
When using multiplication with brackets, you multiply the number by all the numbers within the bracket before adding them together.
Therefore when it is 8(7 + 23) it basically means: 8(7) + 8(23)
Answer:
All of them.
Step-by-step explanation:
For rational functions, the domain is all real numbers <em>except</em> for the zeros of the denominator.
Therefore, to find the x-values that are not in the domain, we need to solve for the zeros of the denominator. Therefore, set the denominator to zero:
![x(x-1)(x^2-4)=0](https://tex.z-dn.net/?f=x%28x-1%29%28x%5E2-4%29%3D0)
Zero Product Property:
![x\neq 0\text{ or }x-1\neq 0\text{ or }x^2-4\neq 0](https://tex.z-dn.net/?f=x%5Cneq%200%5Ctext%7B%20or%20%7Dx-1%5Cneq%200%5Ctext%7B%20or%20%7Dx%5E2-4%5Cneq%200)
Solve for the x in each of the three equations. The first one is already solved. Thus:
![x-1\neq 0 \text{ or }x^2-4\neq 0\\x\neq 1\text{ or }x^2\neq 4\\x\neq 1 \text{ or }x\neq\pm 2](https://tex.z-dn.net/?f=x-1%5Cneq%200%20%5Ctext%7B%20or%20%7Dx%5E2-4%5Cneq%200%5C%5Cx%5Cneq%201%5Ctext%7B%20or%20%7Dx%5E2%5Cneq%204%5C%5Cx%5Cneq%201%20%5Ctext%7B%20or%20%7Dx%5Cneq%5Cpm%202)
Thus, the values that <em>cannot</em> be in the domain of the rational function is:
![x=-2,0,1,2](https://tex.z-dn.net/?f=x%3D-2%2C0%2C1%2C2)
Click all the options.
Answer: Linear
Step-by-step explanation: A linear function can have different rates of change over different intervals.
(I don't know if this is correct, but this is my understanding of it.)