Mathematics, 04.03.2021 01:00 morkitus13

# A computer repair service charges a one-time bench fee of $50 to diagnose the problem
and $35 per hour to repair it.

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• Write an equation in the form y = mx + b that relates the total cost y to the number

of hours the repair takes x.

Identify the slope and the y-intercept in your equation. What do they mean in the

context of this problem?

If a computer takes 5 hours to repair, how much will it cost?

If a computer costs $242.50, how long did it take to repair it?

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Answers: 1

Mathematics, 22.06.2019 01:30, kadinmorgan

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

Mathematics, 22.06.2019 02:30, fr996060

(2, 4) (2, 1) (6, 12) (4, -5) (-2, 4) |(2, -4) (6, -12) (-4,5) quadrilateral abcd is reflected over the x-axis. quadrilateral abcd is translated 2 units right and 1 unit down. quadrilateral abcd is dilated by a scale factor of 3. quadrilateral abcd is rotated 180° clockwise about the origin. reset next

Answers: 3

Mathematics, 22.06.2019 02:30, mohamedramadan

Use stokes' theorem to evaluate c f · dr where c is oriented counterclockwise as viewed from above. f(x, y, z) = xyi + 5zj + 7yk, c is the curve of intersection of the plane x + z = 8 and the cylinder x2 + y2 = 81.

Answers: 2

A computer repair service charges a one-time bench fee of $50 to diagnose the problem
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