Mathematics, 15.02.2021 20:00 wolfking800
Compare and contrast expanding and simplifying algebraic expressions with simplifying numeric expressions. For example, compare simplifying 3(x β 2) + (x β 1) with 3(5 β 2) + (5 β 1).
Answers: 3
Mathematics, 20.06.2019 18:02
You make and sell triangular flags. each flag has a base of 3.53.5 feet and a height of 2.52.5 feet. fabric for the flags costs $0.40$0.40 per square foot. what is the cost to make one flag?
Answers: 3
Mathematics, 21.06.2019 23:10
Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (β4, 0) and (6, 0). the y-intercept of the first parabola is (0, β12). the y-intercept of the second parabola is (0, β24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth
Answers: 2
Mathematics, 22.06.2019 01:00
X^2/100+y^2/25=1 the y-intercepts are at: a) (-10,0) and (10,0) b) (0,10) and (0,5) c) (0,-5) and (0,5)
Answers: 1
Mathematics, 22.06.2019 01:30
Acell phone company offers two plans to its subscribers. at the time new subscribers sign up, they are asked to provide some demographic information. the mean yearly income for a sample of 40 subscribers to plan a is $45,000 with a standard deviation of $9,200. for a sample of 25 subscribers to plan b, the mean income is $64,300 with a standard deviation of $7,100. at the 0.025 significance level, is it reasonable to conclude the mean income of those selecting plan b is larger? assume unequal population standard deviations. hint: for the calculations, assume the plan a as the first sample. what is the decision rule? (negative amount should be indicated by a minus sign. round your answer to 3 decimal places.) compute the value of the test statistic. (negative amount should be indicated by a minus sign. round your answer to 2 decimal places.) what is your decision regarding h0 ? reject h0 fail to reject h0 compute the p-value. less than 0.01 between 0.01 and 0.025 between 0.025 and 0.05 between 0.05 and 0.10 greater than 0.10
Answers: 3
Compare and contrast expanding and simplifying algebraic expressions with simplifying numeric expres...
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