Use graphing calculator to solve system the equations in the interval from 0+2pi. round to the nearest hundredth. 7cos 2t=3

Use the quadratic formula 9x^2+3x-1=0

It takes 40 minutes for 8 people to paint 4 walls. How many minutes does it take 10 people to paint 7 walls? minutes

1/6d + 2/3 = 1/4 (d-2)

The diameter of a circle is 9 inches. What is the radius?

Evaluate - 6^2 - 28 : 4 + (-9). 52 -52 20 -20

Bob just turned 66 years old and is considering retirement. His average annual salary over the last 35 years is $50,760. Assuming that he will receive 42% of his average salary, what will be his annual Social Security benefit?

Given that f (x) = 13x^2+156, find x

Write an inequality. A cold wave hit Chicago when the temp. hit 62 degrees. During the cold wave, the temp. dropped 2 degrees every hour. How many hours was it before the temp. was below 40 degrees?

Evaluate - 4x+y when x=5/4 and y=1/5. Write your answer as a mixed number in simplest form. When x=5/4 and y=1/5, - 4x+y = * blank* .

The sum of four consecutive whole numbers is 54, what are the four numbers