strr wrote:42. I'm not sure how to type that one out on here, but if anyone has access to this test and knows how to do this question, that would be amazing!
strr wrote:7. Noah Sense has 42 coins consisting of pennies, nickels, dimes, and quarters. He has twice as many nickels as pennies, three less dimes than nickels, and three more quarters than pennies. How much money does he have? Ans = $4.37
I would like to know how to set this up, and how to go about setting up similar problems like this. I know it is a simple problem, but for some reason I have the hardest time understanding how to work them out.
strr wrote:13. Find the angle of rotation, theta (I don't know how to get the symbol, sorry) (nearest tenth degree), where theta is between zero and 90 degrees, such that the conic 2x^2 + 12xy + 18y^2 - 3y = 5 contains no xy term in its equation. Ans = 71.6 deg
strr wrote:22. Let p and q be the real roots of x^2 - 2x - 8 = 0, where p > q. Find p^3 + 2p^2q^2 + pq^3. Ans = -32
I know how to work that out by factoring and plugging in, but there must be some shortcut/alternate way to decrease the time to solve this.
strr wrote:36. How many asymptotes exist of h(x) = (x+10)/abs(x)? Ans = 3. I know how to graph this one and count, but is there a way to look at the function and see how many asymptotes there will/might be?
strr wrote:41. A pair of dice are rolled. What are the odds that the roll comes up as a 2, 5, 6, 10, or 12? Ans = 7 to 11
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