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Questions in mathematics

[Done] Is the airplane's altitude a function of time?

[Done] $\begin{array}{l} \left(\begin{array}{llll} 1 & 3 & 8 & 5 \\ 5 & 4 & 6 & 2 \\ 6 & 7 & 1 & 8 \\ 2 & 9 & 3 & 7 \end{array}\right) \\ a_{44}= \end{array}$

[Done] The function [tex]f(x)=x^2[/tex] has been translated 9 units up and 4 units to the right to form the function [tex]g(x)[/tex]. Which represents [tex]g(x)[/tex]? A. [tex]g(x)=(x+9)^2+4[/tex] B. [tex]g(x)=(x+9)^2-4[/tex] C. [tex]g(x)=(x-4)^2+9[/tex] D. [tex]g(x)=(x+4)^2+9[/tex]

[Done] Solve for x. $5x + 54 \geq 74$

[Done] Marco is reconstructing his expenses for the past two weeks. Here are the records of his expenses: | Transaction | Cost ($) | | :---------- | :------- | | T-shirt | 20 | | Gas | 22 | | Movie | 13 | | Video game | 39 | | Jeans | 34 | | Hat | 15 | | Books | 31 | Marco's bank statement says that he has an ending balance of $81. What is Marco's starting balance? A. $255 B. $93 C. $174 D. $210

[Done] A large open meadow near your city is shrinking in size because developers have started building new homes there. The relationship between [tex]$A$[/tex], the area of the meadow, in hectares, and [tex]$t$[/tex], the elapsed time, in months, since the construction began is modeled by the following function. [tex]$A=1562.5 \cdot 10^{-0.1 t}$[/tex] How many months of construction will there be before the area of the meadow decreases to 500 hectares? Give an exact answer expressed as a base-10 logarithm. [ ] months

[Done] Which statement represents the transitive property of equality? A) If WX=XY, then XY= WX. B) If WX=XY and XY=YZ, then WX=YZ. C) If m∠A=m∠B, then m∠B=m∠A. D) If x=y, then y = x.

[Done] What is the slope of a line that is perpendicular to the line [tex]$2 y-3 x=8$[/tex]?

[Done] Find the least common denominator for these fractions. Enter your answer in the space provided. [tex]$\frac{1}{5}$[/tex] and [tex]$\frac{3}{6}$[/tex]

[Done] Solve for $b$ in the following expression. $2.4=4.8 b$ Round to two decimal places if needed.