pahelp po pls sana po matulungan niyo ko salamat po
1. Which of the following is NOT a rational expression?
a. x + 5 b. 2/(x-5) c. √(x-4)/(2x+1) d. (〖3x〗^2-5x+2)/(x+1)
2. f(x)=(x^(3 )-1)/(x+1) , x ≠ -1 is an example of
a. rational function b. rational inequality c. rational equality d. none of these
3. How do you classify 5x ≥ 2/(2x-1) ?
a. rational equation b. rational function c. rational inequality d. none of these
4. What symbol will be replaced with the “ ≤ ” sign in 2x/x^2 -3 ≤ 22/(x+1) to make it a rational equation?
a. ≡ b. ≈ c. = d. ±
5. (x+2)/(x-2) = y + 3 is an example of
a. rational equality b. rational function c. rational inequality d. none of these
6. What symbol will be replaced with the equal sign in the equation (1+x)/(x-2) = 4 to make it an inequality?
a. ≈ b. ≡ c. > d. none of these
7. In the equation (x+2)/(x-2) = x + 3, what symbol must be replaced with 3 to make the equation rational function?
a. y b. √3 c. ≤ d. 3x
8. What symbol is present in the equation y= √(3x+1)/(x-1) for not considering it as rational function?
a. y b. = c. x – 1 d. √(3x+1)
9. The distance from Manila to Baguio is around 250 kilometers. Which of the following expresses the speed of travel, that describes the time it takes to drive from manila to Baguio.
a. t(s) = 250/s b. t(s) = s/250 c. t(s)= 250(s) d. t(s) = 250 – s
For Numbers 10-11.Due to Alert Level 2, Surrey Salon & Spa temporarily stopped its operation and to help the employees the owner decided to split evenly its total revenue of Php65,000.00
10. If the number of employees is represented by x, which function represents the amount each received?
a. f(x) = 65000x b. f(x) = x + 65000 c. f(x) = 65000/x d. f(x) = x – 65000
11. If the owner held a fund raising activity that aimed to help the employees and collected Php5000.00 per employee, which of the following represents the total amount an employee will receive?
a. f(x) = 65000x + 5000 b. f(x) = x + 65000 + 5000 c. f(x) = 65000/x + 5000 d. f(x) = x – 65000 + 5000
12. The DOH released a new drug for Covid infection that is subject for experimentation, supposed that c(t) = 2t/(t+2) mg/ml)
Represents the concentration of a drug in a patient’s blood stream in t hours, how concentrated is the drug after 2 hours of administration?
a. 4 mg/ml b. 3mg/ml c. 2 mg/ml d. 1 mg/ml
13. Jace has 10 cups of flour to be used in baking cakes, he wanted to split it evenly among the containers that he will use so that he can adjust the measurements of other ingredients. Which of the following represents a function C which would give the number of cups of flour in each of the number of containers n will have?
a. C(n) = 100- n b. C(n) = 10/n c. C(n) = 100 + n d. C(n) = n/100
For numbers 14-15. Due to inclement weather, the plane slows down the regular flying rate which results to additional 2 hours in covering a 4000-km distance to its regular time.
14. Write a function that expresses the time t as a function of regular rate r in travelling.
a. t (r) = 4000/r b. t (r ) = r/4000 c. t( r ) = 4000 – r d. 4000/(r+2)
15. What function expresses the time as a function of rate during inclement weather in travelling?
a. t( r ) = 4000/r + 2 b. t( r ) = r/4000 + 2 c. t( r ) = (4000+2)/r d. t( r ) = 4000/(r+2)
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I don't know I'm sorry I'm really really sorry I just need points