Answer:
3
Step-by-step explanation:
42 is 2 x 3 x 7
81 is 3 x 3 x 3 x 3
3 is the greatest common factor
119.9 degree
i used the pythagorean theorem to find it
Answer:
4 and 8
Step-by-step explanation:
Answer:
12 mm
Step-by-step explanation:
Use Pyth Theor
9^2 + b^2 = 15^2
81 + b^2 = 225
b^2 = 144
sqrt 144 = 12
b = 12
Answer:
y = -3/4 x + 25/2
Step-by-step explanation:
x² + y² = 100
Take derivative with respect to x.
2x + 2y dy/dx = 0
2y dy/dx = -2x
dy/dx = -x/y
Evaluate at (6, 8).
dy/dx = -6/8
dy/dx = -3/4
Use point-slope form to write equation:
y − 8 = -3/4 (x − 6)
Simplify.
y − 8 = -3/4 x + 9/2
y = -3/4 x + 25/2
