Answer:
6
Step-by-step explanation:
There are inverses for sine, cosine, tangent, secant, cosecant, and cotangent.
Angles in straight line add to 180 degrees
180-142=38
180-133=47
180-38-47=95
180-95=85 degrees
B
Answer:
Length= 50
Width=17
Step-by-step explanation:
length= n+8
Since n= 42, Just plug it in. So it would be 42+8 which is 50 for the length
Widith: 1/2n-4
basically since N is given for 42, you do 1/2 multipied by 42 which is 21.
Since you also have to subtract 4 inches it would be 17 for the length
First lets simplify the first term and yield (2a)
The second term:
1. 2a * (-1/2) = -a
2. -a + a = 0
Now we have simplified both terms to: (2a) (0)
Anything multiplied by 0 is 0, so the answer is also 0.
The will be (3x - 2) x (3x + 2) x (9x2 + 4)