find, to the nearest degree, the angle of elevation when the sun when a person 170 cm tall casts a shadow 170 cm long

Which values of p and q result in an equation with exactly one solution? px-43=-42x+q choose all answers that apply: a) p=-43 and q=-43 b) p=42 and q=43 c) p=43 and q=−42 d) p=42 and q=42

The length of an intercepted arc of a central angle of a circle is 4 cm. if the radius of the circle is 5 cm what is the measurement of the central angle to the nearest whole degree

Solve 4 ln x=2ln25 a) x=5 b) x=25 c) x=625