What substitution should be used to rewrite 4x^4 - 21x^2+20=0 as a quadratic equation

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. Jason wants to join the construction work force after he graduates in 2012.

Find the x - and y-intercept of the line. x+4y=36

22.90 dollors with 5% sales tax

What is the answer for 4x+2=5

For the line y=2/3x if the y-coordinate is 14 what is the x-coordinate

If f is a one-to-one function such that f (6) = 1, what is f ^-1 (1)

You 494 miles from home and you are driving forward home at an average of 45 mhp. How long will it take to drive home if you maintain the same speed?, (when you reach home, the value x is zero)

Kevin has $100 in a savings account that earns 10% interest per year the interest is not compounded how much interest will he earn in one year

The relation R is shown in the table below. A 2-column table with 4 rows. The first column is labeled x with entries negative 3, negative 1, 1, negative 1. The second column is labeled y with 5, 2, negative 1, 4.

yearly 17% rate of failure. Answer the following question. What is the probability that if you buy four computers, at least 1 will fail within a year?