Provide an appropriate response.
Write a function that represents the data shown below. The number of hours and the total cost are for a technical support phone service that charges by the hour (or any part of an hour).HoursTotal Cost2543764985120
A. C(x) = 24x
B. C(x) = 20x + 14
C. C(x) = 27x
D. C(x) = 22x + 10
Answer: D
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Find the angle between u and v in radians.u = 8i - 3j - 8k, v = 5i + 8j - 7k
A. 1.31 B. 1.02 C. 1.57 D. 0.55
Solve the problem.Find the length of the unknown side of the right triangle, where a and b are the legs and c is the hypotenuse. a = 6, b = ?, c = 10
A. b = 10 B. b = 8 C. b = 7 D. b = 9
Provide an appropriate response.The amount of markdown divided by the original selling price is the markdown percent.
A. True B. False
Let the function src="https://sciemce.com/media/3/ppg__cognero__2.1_Functions_and_Function_Notation__media__620b6c73-5970-497a-ae50-76824265aa75.PNG" class="wirisformula" align="middle" style="vertical-align: middle;" data-wiris-created="true" varid="variable_id_field" variablename="impvar_cfb8b42e63b84f9cabc23f990" />.
be defined by 
, where x and 
are real numbers. Find
?
Fill in the blank(s) with the appropriate word(s).