Using trigonometry
tan(x)=9/6
use your calculator to find x using tan-1(9/6) and you get 56.3° which is basically the first answer
Answer:
a)5, b) -2.5, c) -15,d)-2,e)-10
Step-by-step explanation:
60 percent because 3/5= 0.6 and multiply by 100 its 60
Factor out it by 2.
2(b² - 13b + 40) = 0
b<span>²</span> - 13b + 40 =0
This equation can be solved using the quadratic formula. If you know what a quadratic formula is, then you can get the two values for b. For instance,
(b - 8)(b - 5) = 0
Separate the two "roots", you will get:
b - 8 = 0
b = 8
and
b - 5 = 0
b = 5
Therefore the two values of b are 8 and 5.
Answer:
The correct answer is C. 3x(3x+1)
