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Answers by Thomas L.

help please (answer)

Total right away tells me we are adding.   To Find distance, you multiply speed times time. So Jethro's distance is 3 x 2 and Randy's distance is 4 x 3.  Then we add these.

"Half of 36" is the same as (36 divided by 2). "Giving 4 away" is the same as (subtracting the new number by 4).   So start with 36, then divide by 2, then subtract 4.     If you can type this question then you can calculate the answer.

I am getting f'(x) = 2xe^(x2+1).   Is that what you got?   Next you will have to use product rule.  (Derivative of 2x) times e^(x2+1)  + 2x times (Derivative of e^(x2+1))   I got f''(x) = 2e^(x2+1) + 4x2e^(x2+1)   Notice...

Let's review what this is saying and let's pretend we are talking about rats or some small animal that doesn't live too many years.    It says that at age 0, there were 100 rats, and at age 1 there were only 65 rats. That means that 35 rats died when they were 0 years old or another...

Hello, unfortunately trig identities take time and depend on the problem. Trig identities are like proofs where there is no one method that will solve all of them or even the next one. Only time and a lot of practice will help you understand it.    Here are some pointers I give...

Create an upside down right triangle with 18.8o in the upper left, and 90o in the upper right.     The edge on the right side is the altitude, 1640.                                      ...

P(K,K) = (4/52) *(4/52) = 1/169   P(D, 8) = (13/52) * (4/52) = 1/52     P(4S, KD) = (1/52)*(1/51) = 1/2652   NOTE: denominator must decrease since there is one less card in the deck.   P(K, Q) = (4/52) * (4/51) = 4/663    

Help please (answer)

We will say x is how much they will place into Cert. of Dep. and therefore (180,000 - x) is what they will place into AA bonds.   Since the Cert of Dep yields 7% then they earn 0.07 times x.   Since the AA bonds yield 11%, then they earn 0.11 times (180,000 - x).   Since...