Plug in 0.9 for x
-(x) + 2.7
- (0.9) + 2.7
simplify
2.7 - 0.9 = 1.8
1.8 is your answer
hope this helps
Answer:
i think 80/3
Step-by-step explanation:
The cotangent function is defined as the ratio between cosine and sine of a given angle, i.e.
Since you can't have zero at the denominator, the cotangent function is not defined when the sine is zero.
Let's look at your option:
, so the cotangent is defined here
, so the cotangent is not defined here
, so the cotangent is defined here
, so the cotangent is defined here
(15 qt/hr) x (1/4 gal/qt) x (1/60 hr/min) =
(15) / (4 x 60) = 0.0625 gal/min