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Questions in mathematics

[Done] The patient is receiving morphine 80 mg/hr as a continuous IV infusion. The medication is supplied as 500mg/500ml. How many ml per hour will the nurse set the pump to?

[Done] Represent each of the following expressions as the power of a number a: [tex]$a \cdot \frac{1}{a^2} \cdot a^5$[/tex]

[Done] A circle has a diameter of 12 units, and its center lies on the $x$-axis. What could be the equation of the circle? Check all that apply. $(x-12)^2+y^2=12$ $(x-6)^2+y^2=36$ $x^2+y^2=12$ $x^2+y^2=144$ $(x+6)^2+y^2=36$ $(x+12)^2+y^2=144

[Done] If there is direct variation and [tex]y=-5[/tex] when [tex]x=2[/tex], find [tex]y[/tex] when [tex]x=-6[/tex]. A. 60 B. -3 C. 15 D. 0.60

[Done] Which circle has a radius that measures 10 units?

[Done] Simplify $(4 x^3 y^3)(2 x^2 y)$.

[Done] Which of the following functions is not a sinusoid? A. $y=\sin x$ B. $y=\sqrt{x}$ C. $y=\cos x$ D. None of the above are sinusoids.

[Done] Select the correct answer. Given the following formula, solve for [tex]$n$[/tex]. [tex]$S=(n-2) 180$[/tex] A. [tex]$n=\frac{S}{180}+2$[/tex] B. [tex]$n=\frac{S+2}{180}$[/tex] C. [tex]$n=\frac{S}{180}-2$[/tex] D. [tex]$n=\frac{S-2}{180}$[/tex]

[Done] Assume that a sample is used to estimate a population mean. Find the 98% confidence interval for a sample of size 51 with a mean of 38.9 and a standard deviation of 6.5. Enter your answer as an open-interval (i.e., parentheses) accurate to 3 decimal places. 98% C.I. =

[Done] 7. Solve the chain sums below (multi-step problems). a) 563 + 234 - 455 = b) 373 + 415 - 567 = c) 166 + 723 - 454 = 8. Divide by grouping. A. 27 ÷ 4 = B. 19 ÷ 3 = C. 36 ÷ 7 =