In terms of solving for x:
x=7/114
Answer: y=2x-1
y-7=2(x-4)
y-7=2x-8
add 7 to both sides
y=2x-1
Answer:
see explanation
Step-by-step explanation:
Using the cosine addition formula
cos(A ± B ) = cosAcosB ∓ sinAsinB
Then considering the left side
cos²(45 + A) + cos²(45 - A)
= [ cos45cosA - sin45sinA ]² + [cos45cosA + sin45sinA]]²
= [ cosA - sinA ]² + [ cosA + sinA ]²
= cos²A - sinAcosA + sin²A + cos²A + sinAcosA + sin²A
= cos²A + sin²A
= 1
= right side , then proven
Answer The slope is 2, because you subtract the points 3,17 from 7,25 to get 8/4/ Simplify that into 2. explanation: