Mathematics, 05.05.2020 06:19 alex5560
An automobile manufacturer has given its car a 52.6 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the actual MPG for this car since it is believed that the car has an incorrect manufacturer's MPG rating. After testing 250 cars, they found a mean MPG of 52.8. Assume the population standard deviation is known to be 1.6. A level of significance of 0.05 will be used. State the null and alternative hypotheses.
Answers: 1
Mathematics, 21.06.2019 21:50
Match each whole number with a rational, exponential expression 3 square root 27^2find the domain and range of the exponential function h(x)=125^x. explain your findings. as x decreases does h increase or decrease? explain. as x increases does h increase or decrease? explain.
Answers: 3
Mathematics, 22.06.2019 01:00
3questions show how you solved the problem 1. subtract & simplify (–y2 – 4y – 8) – (–4y2 – 6y + 3) 2.multiply and simplify 2x2y3z2 · 4xy4x2 3.multiply and simplify (x – 4) (x2 – 5x – 6)
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Mathematics, 22.06.2019 01:30
Jacob is graphing the line represented by the equation −6x−5y=12.−6x−5y=12. he first plots the x-x- and y-interceptsy-intercepts as follows. which statement is correct regarding the intercepts on the graph?
Answers: 1
Mathematics, 22.06.2019 01:30
What is the remainder when 3x^2-x-10 is divided by x-1 -6,-7,-8, or -9
Answers: 1
An automobile manufacturer has given its car a 52.6 miles/gallon (MPG) rating. An independent testin...
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