A.)graph the unit circle using parametric equations with your calculator set to radian mode. use a scale of π/12. trace the circle to find all values of t between 0 and 2πsatisfying the following statement. round your answers to the nearest ten-thousandth. (enter your answers as a comma-separated list.)
cos t = −sqrt(2)/2
b.) graph the unit circle using parametric equations with your calculator set to degree mode. use a scale of 5. trace the circle to find the sine and cosine of the angle to the nearest ten-thousandth.
135°
c.)graph the unit circle using parametric equations with your calculator set to degree mode. use a scale of 5. trace the circle to find all values of t between 0° and 360°satisfying the following statement. (enter your answers as a comma-separated list.)
sin t = −1/2

At river bank, checking account customers earn 0.75% interest a month on their account balances, pay no service fees for writing checks, and pay a monthly $2.00 financial charge. calculate the income earned in one month on the checking account for a customer with an account balance of $1,000. a. $4.25 b. $5.50 c. $6.75 d. $7.25 checking account earnings at baker’s bank are expressed by the equation: i = -0.09x + 10.2. while the earnings at elite bank are modeled by: i = -0.02x + 7.5. in both cases, x is the number of checks written. at what number of checks will elite bank start generating more checking account income than baker's bank? a. 12 b. 25 c. 39 d. 42 emilio’s checking account had a balance of 728.32 at the beginning of the week. he wrote checks for the following amounts throughout the week: $99.48, $33.50, $18.23, and $72.05. he also deposited his paycheck in the amount of $1,109.90. what is his account balance at the end of the week? a. $1,192.35 b. $1,222.86 c. $1,540.52 d. $1,614.96