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Canada
A car depreciates at \( 15 \% \) per year. After how many years will it be worth half of its original value? e) A bacterial culture starts with 1000 bacteria and triples after 5 hours. Find the doubling period and the amount of bacteria after 8 hours.
Pre Calculus Jan 21, 2025
4. Rearrange the systems into \( \mathbf{y}=\mathbf{m x}+\mathbf{b} \) form (2) \( \begin{array}{ll}\text { a) }-2 x-y=7 & \text { b) }\end{array} \)
Algebra Jan 21, 2025
\( 1.50 \times 10^{4} \mathrm{ug} \) to mg
Arithmetic Jan 21, 2025
I. As the sample size increases, the confidence interval decreases. II. If the sample size does not change and we want to increase the confidence level, the margin of error must increase. III. The smaller the confidence interval, the more confidence we have that it contains all of the data values.
Statistics Jan 21, 2025
6. a) You recelve \( \$ 800 \) from your income tax return. Explain what you would do with the money. b) If you had a large credit card balance, would your answer be different? b
Economics Jan 21, 2025
4) You discover a new radioactive substance. You have 45 grams of the substance initially. After 4 hours you have 33.6 grams remaining. a) What is the half-life of this radioactive substance? b) What mass will remain after 14 hours? c) Determine the time required for there to be only 8 grams remaining.
Chemistry Jan 21, 2025
3) contestant on a game show spins a wheel located on a plane perpendicular to the floor. He grabs the only red peg on the circumference of the wheel which is 2 m above the floor and pushes it downward. The red peg reaches a minimum height of 0.5 m above the floor and a maximum of 3.5 m above the floor. If one cycle is completed in \( 3 \pi \) seconds, determine the equation of the sine function and model your solution with a clear, labelled sketch.
Trigonometry Jan 21, 2025
1) A small rectangular pool has dimensions 12 m by 6 m by 2 m . A landscaper wishes to increase the length, width and height by the same amount so that the surface area is at most \( 440 \mathrm{~m}^{2} \). What are the maximum dimensions of the larger pool?
Algebra Jan 21, 2025
1) A small rectangular pool has dimensions 12 m by 6 m by 2 m . A landscaper wishes to increase the length, width and height by the same amount so that the surface area is at most \( 440 \mathrm{~m}^{2} \). What are the maximum dimensions of the larger pool?
Algebra Jan 21, 2025
19. Braeden wants to purchase a condo with a 25 -year mortgage of \( \$ 300000 \). The bank offers a mortgage an effective interest rate of \( 3.01 \% \) compounded monthly. What is Braeden's approximate monthly mortgage payment? How much interest will Braeden end up paying for his mortgage? Show your calculations.
Arithmetic Jan 21, 2025
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