Answer:
sin90 =1
cos 90 = 0
Step-by-step explanation:
θ = 90 degrees
 
        
             
        
        
        
Answer:
b = - 5
Step-by-step explanation:
(k + a )(k + x) +  1 = k^2 + kx + ak + ax + 1
I think the way to solve this is to worry about the 36
k^s + 1 + ak should equal 36
We know that a = 2
k^2 + 1 + 2k = 36 
k^2 + 2k + 1 - 36 = 0
k^2 + 2k - 35 = 0
(k + 7)(k - 5) = 0
k = -7   is the only acceptable answer. It is given that K < 0.
bx = kx + ax
b = k + a
b = - 7 + 2
b = - 5
 
        
             
        
        
        
Answer: 400 because 40 multiplied by ten equals 400 hundred, so basically it's just 40 multiplied by 10.