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100
What is the complex conjugate of sqrt(-400) + 17?
What is 17-20i
100
Simplify (14x^2 - 9) + (11x + 6)
What is 14x^2 + 11x - 3
100
Which expression is equivalent to cos(150)? A. cos(30) B. cos(330) C. cos(-30) D. cos(-210)
What is D. cos(-210)
100
The daily high temperature in degrees Fahrenheit (F) in Chattanooga, Tennessee, for two 1-week periods are listed below. 1st week: 90, 86, 91, 85, 82, 89, 90 2nd week: 89, 92, 92, 94, 91, 99, 95 What is the interquartile range for these data over the two weeks?
What is 3
100
A grocery store manager wants to determine how many servings of fresh fruit her adult customers eat per day. She randomly surveys adult customers in the produce aisle of her store about their eating habits. Which statement best explains why her survey could be biased? A. The sample does not include children B. The produce aisle contains more than just fruit C. Adults who do not eat fresh fruit are less likely to shop in a local grocery store D. Adults who do not eat fresh fruit are less likely to be found in the produce aisle
What is D
200
Simplify (2-5i)(-2+5i)
What is 21+20i
200
What is the solution set for (x+10)^2 = 49
What is {-8, 6}
200
Draw a graph to represent one cycle of f(x)=2cos(x)
What is check graph
200
Javier placed the same three ads in a monthly paper for each of the last 10 months. The monthly number of responses he received to each ad are listed below. Ad 1: 0, 0, 1, 2, 3, 4, 4, 6, 7, 11 Ad 2: 0, 1, 2, 3, 3, 4, 5, 8, 10, 10 Ad 3: 2, 2, 3, 4, 4, 5, 6, 7, 8, 11 Javier used this information to calculate the interquartile range for each ad. List the ads in order from least to greatest interquartile range.
What is Ad 3, Ad 1, Ad 2
200
Solve the equation |2x + 3|=13
What is x=5 or x=-8
300
Plot the point -3+2i on a graph. (Hint: the x-axis represents "real numbers", the y-axis represents "complex numbers).
What is Check graph.
300
What is the value of g(f(-4)) for these functions? f(x)=x + 6 and g(x)=4x^2
What is 16
300
Draw a graph to represent one cycle of y=cos(2x)
What is check graph
300
The milages of the vehicles in a government fleet are normally distributed with a mean of 60,000 miles and a standard deviation of 8,000 miles. If a vehicle from the fleet is randomly selected, what is the probability that the milage is greater than 44,000 miles?
What is 0.98
300
Nancy made the following statement: "The range of f(x)=ax+b is the set of all real numbers, given a and b are real numbers." Which produces a counterexample to her statement? A. a=0 B. b=0 C. a<0 D. b<0
What is A
400
A building has a square base with an area of 5,625 square feet. A scale model of the building has a base with an area of 0.81 square foot. What is the ration of the length of the base of the building to the length of the base of the model?
What is 250/3
400
What is the range of the equation below? y= -|x - 8|+3
What is all real numbers less than or equal to 3
400
Find the degree measure is equivalent to 7(pi)/12 radians
What is 105
500
What value of x makes this equation true? 9(x-7)^(4/3) = 9
What is 8
500
Simplify (5y - 3)(2y + 5)
What is 10y^2 +19y - 15