book Maths Puzzle Numerical Ability

please help me with this problem.

Solve the equation.

9y^2 + 12y + 4 = 0
thanks so much.

Read Solution (Total 0)

book Other Question

A researcher orders a broth of 41.6% glucose for his lab. However, he needs a stronger broth, one that is 52.5% glucose. Fortunately, he has 83.2 liters of 64.2% glucose broth in Help Please!!

Susan purchased some municipal bonds yielding 9.5% annually and some certificate of deposits yielding 8% annually. If Susans investment amounts to $21,000 and the