Answer:
π
Step-by-step explanation:
Solve for x on the interval [0, 2pi]
Given the equation
Sinx = cosx + 1
Square both sides of the equation
Sin²x = (cos x + 1)²
Sin²x = cos²x + 2cos x + 1
Since Sin²x = 1 - cos²x
1 - cos²x = cos²x + 2cos x + 1
Collect like terms
1-1-cos²x-cos²x-2cos x = 0
-2cos²x-2cos x = 0
-2cos²x = 2cos x
-cosx = 1
cos x = -1
x = arccos -1
x = 180 degrees
<em>Hence the value of x = π</em>
B


b=

Where k is a constant of proportionality.
b=18, c=4,d=9, e=6
Finding the value f k,
18=

6k=18
k=3
The equation then is;
b=

The constant of variation=3
Answer:
y-intercept = 3
Step-by-step explanation:
- y = mx + c
- rearrange 2y-5y+15
- let y as a subject
- c = y-intercept
So firstly, I would foil 5(2x - 8). 
Next, I would combine like terms: 
Next, I would add 25 on each side: 
Finally, I would divide 10 on each side, and my answer would be x = 1.
I found that the answer is 10