Basic Math Questions and Answers

Find the derivative 10 sin x 1 cot x y ncvps instructure y 10 csc x cotx sec x y 10 csc x cotx csc x y 10 cos x csc y 10 csc x cotx sec x x

Eliza went to the store and bought 3 lbs of apples at 1 99 per lb two loaves of bread at 89 per loaf a boz of cereal at 3 99 per box and a gallon of milk at 3 19 per gallon If Eliza paid with 20 how much change did she receive O 5 70 O 14 93 O 5 07 20

TIME REMAINING 01 38 18 A supervisor finds the mean number of miles that the employees in a department live from work He finds x 29 and s 3 6 Which mileage is within a z score of 1 5 O 21 miles O 24 miles 36 miles O41 miles

Complete the sentence below The polynomial 2x5 3x4 12x 2 is of degree The polynomial 2x5 3x4 12x 2 is of degree Type an integers or decimals The leading coefficient is The leading coefficient is

height m 5 42 4 45 4 53 4 29 3 96 5 42 5 64 3 74 4 45 4 11 weight kg 1273 1257 1152 1059 1070 1260 1310 1046 1139 1084

A sociologist wants to investigate the question Is there a relationship between texting during class and grade point average GPA among high school seniors in a large district Which study design is most appropriate Before the semester starts randomly select 40 seniors from each high school who do not text during class Assign 20 to the texting treatment group text three or more times during every class meeting and 20 to the control group no texting during class At the end of the semester obtain each student s GPA from the appropriate admissions and records office Compare the GPA of students who routinely text during class to the GPA of students who do not text during class Obtain the cell phone numbers of all seniors in the district Send a text survey to each student asking about the student s texting habits during class Obtain each student s GPA from the appropriate admissions and records office Compare the GPA of students who routinely text during class to the GPA of students who do not text during class Obtain a list of seniors in the high school district Randomly select 300 seniors and survey them about their texting habits during class Obtain each student s GPA from the appropriate admissions and records office Compare the GPA of students who routinely text during class to the GPA of students who do not text during class

80 Watt 400 Watt Total B C According to the table above 100 Watt bulbs made what fraction of the working lightbulbs D 1 230 3 614 2 384 3 614 271 398 Working 1 230 2 384 3 614 2 384 2 655 Defective 127 271 398 Total 1 357 2 655 4 012

The function f x is graphed below Determine whether the degree of the function is even or odd and whether the function itself is even or odd 10 8 6 4 2 y 100 80 60 40 20 20 40 60 80 100 2 6 8 10 f x has an even degree but is not an even function f x has an even degree and is an even function Of x has an odd degree but is not an odd function Submit Answer

In Kawhi Leonard s previous 6 playoff games he scored the following amount of points 26 28 31 33 34 36 In his most recent playoff game he struggled and scored only 6 points Decide which statements are true or false about the influence of the outlier 6 The new outlier of 6 will increase the mean The new outlier of 6 will increase the median The new outlier of 6 will increase the standard deviation 3 4 5 6 Data Set 2 2 The frequency distributions of two data sets are shown in the dot plots below Choose the correct answer om the choices on the next page Data Set 1 3 2000 Select the one correct statement that describes these data sets The mean and median are greater for Data Set 1 The mean and median are greater for Data Set 2 The mean and standard deviation are greater for Data Set 1 The mean and standard deviation are greater for Data Set 2 True 4 False 000 8 9 10 11 12 Justify your reasoning for the choice you made above

2 The senior class is having a fundraiser to help pay for the senior trip Selling a box of chocolates yields a profit of 2 45 while selling a box of cookies yields a profit of 2 70 The demand for cookies is at least twice that of chocolates but the amount of cookies produced must be no more than 550 boxes plus 3 times the number of chocolates produced Assuming that the senior class can sell every box that they order how many boxes of each should they order to maximize profit if they cannot order more than 1950 boxes combined Show work

Solve the system by substitution 4y 3x x No solution 5 7y 15

hts in a mathematics class are calculating the dimensions of a local billboard They know that the perimeter of th billboard is 130 feet and that the length of the billboard is 5 feet longer than twice the width of the billboard Which student has chosen the correct formula to use to solve this problem Choose the correct answer below Julio has decided that O A 130 2x 2 2x 5 will give the correct values OB O C O D Delia has written 130 x 2x 5 Samnong has written 130 x 2x 5 for his formula Joel has used the formula 130 2x 2 2x 5

Paul Rey bought two new Dunlop tires at Goodyear for 96 19 per tire Goodyear charged 3 15 per tire for mounting 3 05 per tire for valve stems and 3 90 per tire for balancing If Paul paid no sales tax what was his total cost for the two tires Round your answer to 2 decimal places Total cost

A survey was done that asked people to indicate whether they run or ride a bike for exercise Out of those who were surveyed what is the percentage of bikers who do not run Run Do not run Bike 724 121 Do not bike 103 052

A mirror should be centered on a wall The mirror is 36 inches wide and the wall is 18 feet wide Which equation helps determine the distance x on each side of the mirror A X 3 x 18 B X 18 3 X 36 x 18 3 x 3 18

29 Grande Prairie to Medicine Hat Alberta 15 10 hrs and 45 minutes to drive Suzie s SUV is travelling at a constant rate of speed from Grande Prairie to Medicine Hat a What are the independent and dependent variables Independent variable Time Dependent variabe Distance Covered km b How could you represent Suzie s starting coordinates and end coordinates Suzie s starting coordinates 0 0 NEED TO MAKEA 1013 Suzie s ending coordinates 5 10hr GRAPH