Answer: Choice B) 
Work Shown:
Note: secant is positive in quadrant Q4, when theta is between 3pi/2 radians and 2pi radians (270 degrees and 360 degrees). So that's why we don't consider the minus form of the plus minus.
For every 6 adults there are 5 baby camels
total number of adults and baby camels = 44
baby camels = ?
let x is the total number of baby camels and y is the total number of adult camels and x + y = 44
for 6 adults 5 baby camels
for 12 adults 10 baby camels
and 18 adults have 15 baby camels
and for 24 adults it means there are 20 baby camels
so y if y = 24 and x = 20 the sum is equal to 44
20 + 24 = 44
i means there are 20 baby camels in the zoo.
<span>A = 2ab + 2ac + 2bc
A = 2b(a + c) + 2ac
2b(a + c) = A - 2ac
b = (A - 2ac) / [2(a + c)]</span>
So, to find the answer you'd first add up how many patients you have:
20+50+100 = 170.
In a fraction your total would go on the bottom. Then you'd take how many patients are taking a real drug, which is represented by 20+50 = 70. This number would go on top.
So, the probability of a patient NOT getting a placebo is 70/170. Simplified would be 7/17.
The answer is D. 7/17.
your answer is 2 1/3 or 7/3
