Answer:
-18.289
Step-by-step explanation:
From SOHCAHTOA,
using CAH which is COS
CAH=adjacent/hypotenuse
cos 28°=x/19
19cos28°=x
x=19cos28°
x=-18.289
Answer:
x=3
Step-by-step explanation:
25/100 1/4 the 1/4 is 25 is 1/4 of 1 dollar which is also 100
First divide by 3 because we don't want any factor in front of the x² when doing factorization:
3x² + 15x – 18 = 0 => x² + 5 - 6 = 0
Then find the two numbers that multiply to -6 and add up to +5:
x² + 5 - 6 = 0 => (x-1)(x+6) = 0
So the solutions are x=1 or x=-6, that's answer B.
B. Quadrant lll in Quadrant lll there is negative and negative