Mathematics, 27.07.2019 05:30 cedavenport1277
Arecent poll of 80 randomly selected californians showed that 38% ( = 0.38) believe they are doing all that they can to conserve water. the state government would like to know, within a 99% confidence level, the margin of error for this poll. (99% confidence level z*-score of 2.58) remember, the margin of error, e, can be determined using the formula e = z*. to the nearest whole percent, the margin of error for the poll is %.
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Mathematics, 21.06.2019 17:00
Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?
Answers: 1
Mathematics, 21.06.2019 20:00
Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39
Answers: 1
Arecent poll of 80 randomly selected californians showed that 38% ( = 0.38) believe they are doing a...
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