Answer:
fourth option
Step-by-step explanation:
Given
=
( cross- multiply )
y(w + 2) = 2z(2x - 1) = 4xz - 2z ( divide both sides by y )
w + 2 =
( subtract 2 from both sides )
w =
- 2
The answer is B. 68˚
The sum of the angles in a triangle is 180˚, so to find x just subtract 75 and 37 from 180
180-75-37=x
F(6) = 6(5 - 6) = 6(-1) = -6
f(6.1) = 6.1(5 - 6.1) = 6.1(-1.1) = -6.71
f'(6) ≈ (-6.71 - (-6))/(6.1 - 6) = -0.71/0.1 = -7.1