Questions Asked in October 2013

If a=3/-4 and b=-1/3, evaluate: (2a^2+4b)/14b^2 Asked on October 1, 2013

24.8 mL sample of a 4.63 x 10–2 M solution of NaCl is mixed with a 30.0 mL sample of a 3.67 x 10–2 M... Asked on October 1, 2013

a 60 inch string is cut in 2 pieces, the first piece is 6" longer than twice the second piece, find... Asked on October 1, 2013

Chen’s father was 25 when Chen was born. In 5 years Chen will be exactly half his father’s age. a... Asked on October 1, 2013

When they dial 3 and turn the oven on, it is like pushing the old button 3 times. That means if they... Asked on October 1, 2013

the base of isosceles triagle is 5 m less than 4 times the length of a side. The perimeter is 67, fi... Asked on October 1, 2013

A rectangle has a length of 4x and a width of 4x-2. its perimeter is 12 inches find the length and w... Asked on October 1, 2013

Write two algebraic pattern rules for this toothpick pattern. Figure 1 = 3toothpicks Fiqure 2 =... Asked on October 1, 2013

The formula for the volume of a rectangular prism with the length l, width w, and height h is V = lw... Asked on October 1, 2013

For X ∼ Bin(n, p), show that E(X) = np and Var(X) = np(1 − p) Our book defines this as true, but... Asked on October 1, 2013