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A student ran out of time on a multiple choice exam and randomly guessed the answers for two problems. Each problem had 4 answer choices - a, b, c, d- and only one correct answer. What is the probability that she answered both of the problems correctly? Write your answer as a fraction insimplest form.
A research shows that employee salaries at company XYX, in thousands of dollars, are given by the equation y-hat= 48.5 + 2.2 a + 1.5 b where ‘a' is the years of experience, and ‘b' is the education level in years.
a cashier has a total of 123 bills made up of fives and tens. The total value of the money is $725. how many ten-dollar bills does the cashier have?
a kite 100 feet above the ground moves horizontally at a speed of 8 feet per second. At what rate is the strong being let out when 200 feet of string has been let out.
Compute the volume of the solid generated by revolving the triangular region bounded by the lines
Factorize and solve the given quadratic equation and Solving the given quadratic equation by using formula method
Find the sample size needed to assure with 95.44 percent confidence that the sample mean will not differ from the population mean by more than 2 units.
The differential equation below models the temperature of a 86°C cup of coffee in a 16°C room, where it is known that the coffee cools at a rate of 1°C per minute when its temperature is 70°C. Solve the differential equation to find an expression ..
A plane can fly 410 miles in the same time as it takes a car to go 100 miles. If the car travels 155 mph slower than the plane, find the speed of the plan.
One researcher wishes to estimate the mean number of hours that high school students spend watching TV on a weekday. A margin of error of 0.25 hour is desired. Past studies suggest that a population standard deviation of 1.7 hours is reasonable.
A bowl is shaped like a hemisphere with diameter 36 cm. A ball with diameter 4 cm is placed in the bowl and water is poured into the bowl to a depth of h centimeters. Find the volume V of water in the bowl. Consider two cases: one in which the bal..
A motorboat travels 290 km in 5 hours going upstream. It travels 430 going downstream in the same amount of time.
What is the difference between entrepreneurs and inventors? What is the difference between entrepreneurs and inventors as defined in entrepreneurship point of view?
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