MathXs - UWIFIC

Algebra

100

What is/are the roots of the equation below?

x²+4x+4

-2

200

A train departs every 15 minutes starting at 8:00 AM. What time will the 10th train depart?

10:15 AM

300

The sum of two numbers is 45. The larger number is 3 more than twice the smaller number. Find the numbers.  

14 & 31

Pre-Calculus

100

c²=a²+b²-2ab*cos(C) is also known as what?

Cosine Rule

200

Given 2 Events, A and B, P(A) = 0.3, P(A U B) = 0.7 and P(B') = 0.6. Calculate P (A n B).

0.3

Miscellaneous

100

Find gcd⁡(12345654321,12345654322)

1

200

If David has twice as many 5¢ as Tom, and Tom has 15 more 5¢ than John, what is the value in dollars of David’s 5¢ if John has 6 "5¢'s"?

210 cents = $2.10

300

Find the remainder the last 2 digits of 3²⁰²⁴

81