If the measure of angle 0 is 11pi/6 which statements are true? the measure of the reference angle is 45°

the measure of the reference angle is 60°

cos(0)= square root 3 /2

sin(0)= 1/2

tan(0)=1

the measure of the reference angle is 30°

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs