Simplify the expression 3 2 æ 4 c
− 6 25 d −4 ö è ø
A junior and a senior each simultaneously pick an interger at random from 1 to 10, inclusive. Find the probability that the "junior's number is even and the senior's number is divisble by 3." Give your answer in the form of a common fraction.
Solve the equatoin
= 3 − i
\ x + 8
Rationalize the denominator in the expression 3
\x 2 y 2
− 3
\x 3
\y
Solve the equation
+ 4 x 2 + 2 x − 15
= 5 x 2 − x − 6
for x.
3 x 2 + 7 x + 10
Find the sum of the infinite geometric series
.
∞ Σ 4 · 0.6 n − 1 k = 1
Machine C can do a job in 20 hours. Machine D can do this job in 15 hours. If machine C works alone for 2 hours and then Machine D works alone for 3 hours, how many additional hours are needed to complete the job with both machines at work?
Find the sum of the solutions to the equation
= −4 x + 6.
x 2 − 3 x
don't worry, the problems aren't as hard as they look and for those who think this is a snap, then see Mr. Darnall in Room 355.