Solve 2 (sin2 90° - 2 sin 90° cos 90° + cos2 90°)

How do you solve x^4-16x^2-720=0

Match each formula to its correct description. 1. simple interest i = prt 2. distance r = d/t 3. time money is invested r = l/pt 4. rate of speed t = i/pt 5. rate of interest t = d/r 6. time spent driving d = rt

Three classes of school children are selling tickets to the school play. the number of tickets sold by these classes, and the number of children in each of the classes have been read into these variables:tickets1, tickets2, tickets3 and class1,

Half of Hillary's friend, Jamiz's fourth grade class is female. Including Jamiz, there are 14 girls in the class. How many students are there in all in Jamiz's class?

The padlock for your gym locker uses a 3 number sequence to open the lock. if the numbers go from 1 to 22, how many different sequences are there on the dial without repeating a number?

Given triangle ABC is congruent to PQR, b = 3v+4 and q=8v-6 find angle b and angle q

Annabelle measured and recorded the amount of rainfall for 9 days in a row. Her results are shown below. 3/10in., 1/5in.,1/10in., 3/10in., 2/5in., 1/5in., 1/5in., 1:5in. What is the average amount of rainfall per day for the 9-day period?

What is the trigonometric ratio of sin 65? answer in two decimal places

If 3x + 7y = 37 and x = 3, then y =

The island has 600 bikes and 900 people. What is the bike to person ratio?