Mathematics, 14.07.2020 14:01 maddyleighanne
A rectangular lawn has an area of 140 square yards. Its width is 6 yards less
than twice its length. Determine the length and width of the lawn. Round to
the nearest tenth if necessary
Answers: 1
Mathematics, 21.06.2019 17:00
The sum of the reciprocal of a positive number and the reciprocal of 2 more than the number is 3/4 equation: the number is
Answers: 2
Mathematics, 21.06.2019 20:30
What is always true about a positive integer raised to a negative odd power?
Answers: 1
Mathematics, 21.06.2019 22:00
Given the quadratic function f(x)=3x^2-24x+49 a. use “completing the squares” to convert the quadratic function into vertex form b. state the vertex c. find the x and y intercepts d. graph the function
Answers: 1
Mathematics, 21.06.2019 23:30
Aprisoner is trapped in a cell containing three doors. the first door leads to a tunnel that returns him to his cell after two days of travel. the second leads to a tunnel that returns him to his cell after three days of travel. the third door leads immediately to freedom. (a) assuming that the prisoner will always select doors 1, 2 and 3 with probabili- ties 0.5,0.3,0.2 (respectively), what is the expected number of days until he reaches freedom? (b) assuming that the prisoner is always equally likely to choose among those doors that he has not used, what is the expected number of days until he reaches freedom? (in this version, if the prisoner initially tries door 1, for example, then when he returns to the cell, he will now select only from doors 2 and 3.) (c) for parts (a) and (b), find the variance of the number of days until the prisoner reaches freedom. hint for part (b): define ni to be the number of additional days the prisoner spends after initially choosing door i and returning to his cell.
Answers: 1
A rectangular lawn has an area of 140 square yards. Its width is 6 yards less
than twice its length...
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