Which one is the correct expansion of cos 60? 0 2 sin? 30 - 1 O cos 50 cos 0+ sin 50 sin 0 O cos 50 sin 0+ sin 50 cos 0 O cos 40 cos 20- sin 40 sin 20

Q: Louis must ride a mechanical lift to place 20 boxes on a high store shelf. Louis weighs 140 pounds.…

A: Calculate the total weight of boxes and add with the weight of Louis.

Q: What is the value of (EX)?for the following scores? Scores: 1, 5, 2 O a. 64 O b. 10 16 O d. 30

A: We have given that the values of X are 1, 5, 2.

Q: If s = t/6 and 8 = ¹/2 what form does the intermediate variable u, that is used to determine the…

A: To find- If s = tδ and δ = ε12 what form does the intermediate variable u, that is used to determine…

Q: Show that f(x) =x and t 11 -x are inverses.

A: We need to show that f(x)=511x and f-1(x)=115x

Q: 1. If sec A 5 and sin A 0. What is the value of cos ? 3/10 10 V10 10 O 3VTO 10 V10 10

A:

Q: For the distribution in the following table, what is the percentile rank for X = 8.5?

A: Given that  X C% 9 100% 8 80% 7 50% 6 25% Here, Percentile rank for x=8.5

Q: sy = sin(x)- y = cos(x) T/2 Two students, S and T, considered this problem: Consider the region…

A: From the given bounded region: Consider the vertical strip; The area of the vertical strip is;…

Q: A population of N=6 scores hasEX = 12 andEX² = 54. What is the value of SS for this population? О а.…

A: Ans - Given, A population of N  = 6 scores has ∑x = 12 and ∑x2  = 54        Find the value of SS

Q: A researcher for the EPA measured the amount of arsenic in the water near a sewage treatment plant.…

A: The ogive curve for the amount of arsenic in the water near a swage for a sample of 20 water…

Q: A data set lists earthquake depths. The summary statistics are n= 500, x= 5.39 km, s= 4.31 km. Use a…

A:

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

A: It is given that sample size (n) is 986 and x is 522.

Q: The number of tickets issued by a meter reader for parking- meter violations can be modeled by a…

A: It is given that, the number of tickets issued by a meter reader for parking meter violations…

Q: A police car is located 60 feet to the side of a straight road. A red car is driving along the road…

A:

Q: Which of the following are equivalent to log 4+-log x-5 log y? Select all that apply. 3 1 log 4+ log…

A:

Q: 15. Find bounds for the area of the right tail cut off by t = 1.33, if df = 55. 041 0.34 0.2+ 0.14

A: given data, t=1.33df=55right tailed test we have to find out the proabbaility  for the given data

Q: Which one is the correct option

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Q: Automobiles Purchased An automobile owner found that 20 years ago, 76% of Americans said that they…

A: It is given that the number is much less than 76% today.

Q: Most companies that make golf balls and golf clubs use a one-armed robot named "Iron Byron" to test…

A: Q. Based on these sample data , what is the point estimate for the difference between the mean…

Q: Which of the following is a non-parametric test?

A: Given that  We have to find which of these is non parameter   Z test  ANOVA  T test  Chi square

Q: Refer to the accompanying data set and construct a 90% confidence interval estimate of the mean…

A: Step-by-step procedure to obtain the mean and the standard deviation using Excel is given below: In…

Q: Multiply the complex numbers and write the result in standard form. * (4+3i)(2-5i) 23-14i 8-15i…

A:

Q: The piston diameter of a certain hand pump is 0.4 inch The manager determines that the diameters are…

A: From the given information we conduct Hypothesis test.

Q: Find the slope at x = 3 on the graph of 2y - 4x = 9. (a) -4 (b) 2 (c) 10.5 (d) 0

A: Since you have posted multiple questions i can do first question as per our company guidelines…

Q: Aeşume that a procedure yields a binomial distribution with n=3 trials and a probability of success…

A: Given that, Sample size = 3 Probability = 60% = 0.60

Q: What is the equation of the graph below? 0.5 5 T/6 10 0.5 = CoS ( 2x 3 ) y = sin ( 2x + y = sin ( 2x…

A:

Q: Find the value of x on the graph of y = x² where the slope is 16. (a) 4 (b)-4 (c) 2 (d) 8

A: To find the value of x on the graph of y=x2 where the slope is 16.

Q: S*(1+ 2') %3D 14 + C In(7) In(14) 7t+1 In(7) 14t+1 + C In(14) 7t In(7) 9t + C In(9) 7t + C In(7) 7t…

A: The given integral is: ∫7t1+2tdt Now, shift the 7t under the brackets.…

Q: Let y = 2 /T. Find the change in y, Ay when x = 1 and Ax = 0.3 %3D %3D Find the differential dy when…

A:

Q: UneN . Select all of the following which are true about the set X. Let X := 2 + O 3 E X 3 ¢ X 0 E X…

A: Given X = ∪n∈ℕ1n , 2+1n Let an = 1n , 2+1n then a1 = 11 , 2+11= 1 , 3a2 = 12 , 2+12= 12 , 52 and so…

Q: If csc 0 - and cot 0 > 0, what is the value of sec 0? 3/5 7 3/5 7/5 15 7/53 53

A:

Q: For a population with µ = 40 and o = 8, what is the X value corresponding to z= 1.50? O a. 50 O b.…

A:

Q: In a study of treatments for very painful "cluster" headaches, 151 patients were treated with oxygen…

A: Given: For Oxygen Treatment: n1 = 151, x1 = 109 Sample proportion of patients free from headaches 15…

Q: Construct the cumulative frequency distribution that corresponds to the given frequency…

A: Given Data, Speed Number of cars 0-29 4 30-59 16 60-89 60 90-119 20 Total  100