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Answer: sin u = -5/13 and cos v = -15/17
Step-by-step explanation:
The nice thing about trig, a little information goes a long way. That’s because there is a lot of geometry and structure in the subject. If I have sin u = opp/hyp, then I know opp is the opposite side from u, and the hypotenuse is hyp, and the adjacent side must fit the Pythagorean equation opp^2 + adj^2 = hyp^2.
So for u: (-5)^2 + adj^2 = 13^2, so with what you gave us (Quad 3),
==> adj of u = -12 therefore cos u = -12/13
Same argument for v: adj = -15,
opp^2 + (-15)^2 = 17^2 ==> opp = -8 therefore sin v = -8/17
The cosine rule for cos (u + v) = (cos u)(cos v) - (sin u)(sin v) and now we substitute: cos (u + v) = (-12/13)(-15/17) - (-5/13)(-8/17)
I am too lazy to do the remaining arithmetic, but I think we have created a way to approach all of the similar problems.
1 km = 0.62137... mile (rounded)
7 km = 4.3296... miles (rounded)
Answer:
Its when you just swthc your thingy
Step-by-step explanation:
2+4=6
turns into
4+2=6
Answer:
Option (d) is correct.
Step-by-step explanation:
Given that,
The wholesale price of a pen is $15.
It then marks up the price by 94%.
Its marked price is equal to 94% of $15. So,
Selling price of the highlighter pen is equal to the sum of marked price and the wholesale price.
SP = $14.1+$15
SP = $29.1
Hence, the marked price is $14.1 and the selling price is $29.1
