cos 115o
cos 255o
cos 285o
-sin165o
-sin 255o
Correct answer is C
No explanation has been provided for this answer.
Which of the following types of soil has the highest capacity for water retention?
Clay
Laterite
Loam
Gravel
Sand
Correct answer is A
No explanation has been provided for this answer.
Given that tan x = 5/12, what is the value of sin x + cos x ?
5/13
7/13
12/13
17/13
5/12
Correct answer is D
\(\tan x = \frac{opp}{adj} = \frac{5}{12}\)
\(Hyp^2 = opp^2 + adj^2\)
\(Hyp^2 = 5^2 + 12^2\)
= \(25 + 144 = 169\)
\(Hyp = \sqrt{169} = 13\)
\(\sin x = \frac{5}{13}; \cos x = \frac{12}{13}\)
\(\sin x + \cos x = \frac{5}{13} + \frac{12}{13}\)
= \(\frac{17}{13}\)
20km
24km
25km
31km
84km
Correct answer is C
No explanation has been provided for this answer.
If sin x = cos 50o, then x equals
40o
45o
50o
90o
130o
Correct answer is A
No explanation has been provided for this answer.