(25 points) Mark any solutions to the equation 2cos^2x - 1 = 0

-7pi/4
15pi/4
3pi/4
pi/8

Eight people were asked what the balance of their savings account at the beginning of the month was and how much it increased or decreased by the end of the month. create a scatter plot that represents the data that is shown in the table. the x-axis represents the beginning balance in thousands of dollars and the y-axis represents the change in the savings account in hundreds of dollars. name beginning balance (in thousands of dollars) change in savings account (in hundreds of dollars) jimmy 5 3 kendra 4 7 carlos 5 4 yolanda 3 1 shawn 2 5 laura 3 2 andy 5 6 georgia 4 3

Find the balance at the end of 4 years if 1000 is deposited at the rate of

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals