Answer:
I just learned this about a few weeks ago I hope this helps.
Step-by-step explanation:
Since it's cosine you're only looking at Adjacent and the hypotenuse which the adj is 20 and the hyp is 25 so since cosine is adj/hyp you do 20/25 then simplify it to 20/25 divide both by 5 so it's simplified to 4/5.
Then you do Cos-1(4/5)=36.869 which is rounded to the tenth 36.9 but rounded to the hundredth 36.87.
Hope this helps
Substitute p and q with the given numbers (6 and 5) then use pemdas
18+42/6-5= 20
The answer is ( -2 , -1 ) .
Hope it's helped ♥️♥️♥️♥️♥️.
Y = x² - 3x - 18
When y = 0,
x² - 3x - 18 = 0
<span>(x + 3)(x - 6) = 0
</span>
x = -3 or x = 6
