Mathematics, 26.02.2021 14:00 astr0neya
Solve x≤−5 or x≤−3 and write the solution in interval notation.
Answers: 3
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At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec
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How many and of which kind of roots does the equation f(x)=2x^4−9x^3+17x^2−16x+6 have?
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Which answer choice is it? is it the first ,second,third or fourth giving 40 points for whoever answers correctly you
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Solve x≤−5 or x≤−3 and write the solution in interval notation....
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