Answer:
Step-by-step explanation:
Use the quadratic equation, with a = 3, b = 1 and c = -5
Discriminant b^2 - 4ac is 1 - 4(3)(-5) = 61
Because the discriminant is + there are two real, unequal roots:
-1 ± √61
x = ---------------
6
Answer:
x = 16
Step-by-step explanation:
cos theta = adjacent side / hypotenuse
cos 60 = 8/x
Multiply by x on each side
x cos 60 =8/x*x
x cos 60 = 8
Divide by cos 60 on each side
x cos 60/cos 60 = 8 /cos 60
x =8 /cos 60
x = 16
The answer is... x = -7 or x = 1
Answer:
2.84
Step-by-step explanation:
20.00 - 17.16 : If you think of it with zeros it might help
2.84 when solved