Trig ratios can only be used on right triangles with acute measures.
If given an angle and there are adjacent and opposite sides, then use tan(opposite/adjacent)
If given an angle and there is an adjacent side and a hypotenuse, then use cosine(adjacent/hypotenuse)
If given an angle and there is an opposite and adjacent side, then use sin(opposite/hypotenuse)
A common mnemonic device used to memorize the trig rules is SOH-CAH-TOA
Answer:
B. 184
Step-by-step explanation:
A proportion is an easy way to solve this:
4.0506100 x 10^-1
Because all you need to do is move the decimal point to the right once, you write 10^-1 to show that to get back to the original number, you just multiply 4.0506100 by -0.1
14x^2+6x-7x-3
14x^-7x +6x-3
group
7x(2x-1) +3(2x-1)
factor out (2x-1)
(2x-1)(7x+3)
