If cos x = 4/5, 0° \( \leq \) x \( \leq \) 90°, find the value of (1 + tan x)/(1 - tan x)
9
7
4
\(\frac{7}{16}\)
\(\frac{9}{25}\)
Correct answer is B
No explanation has been provided for this answer.
One of the interior angles of a regular polygon is 120°. Find the number of sides of the polygon
3
4
6
9
12
Correct answer is C
No explanation has been provided for this answer.
\(\frac{1}{6}\)
\(\frac{1}{-14}\)
- \(\frac{3}{2}\)
\(\frac{7}{6}\)
\(\frac{2}{5}\)
Correct answer is B
\(\frac{1}{t}\) + \(\frac{4}{3}\) - \(\frac{5}{6t}\) + 1 = 0
collect like terms
\(\frac{4}{3}\) + 1 = \(\frac{5}{6t}\) - \(\frac{1}{t}\)
\(\frac{4 + 3}{3}\) = \(\frac{-1}{6t}\)
cross multiply
42t = - 3
t = \(\frac{-3}{42t}\)
t = \(\frac{-1}{14}\)
If log102 = 0.3010 and log103 = 0.4771, simplify: (Log108-log92) ÷ (Log109 - log102)
4
3
0.0784
-4
-0.0784
Correct answer is E
No explanation has been provided for this answer.
P -3q
\(\frac{1}{3}\) (p - 3q)
3q
4p - q
12p - 3q
Correct answer is D
No explanation has been provided for this answer.