Glven the value of cos 60° -0.5, enter the sine of a complementary angle. Use an expression relating trigonometric ratios of complementary angles.
cOS 60º= ___ º ≈___

Factorize: x^2+8x+10 i just solved it but i don't know if the process is correct

What is the missing constant term in the perfect square that starts with x^2 -20x

Find parametric equations for the line tangent to the curve of intersection of the surfaces at the given point. surfaces: xsquared2plus+2yplus+2zequals=1212 yequals=33 point: left parenthesis 1 comma 3 comma five halves right parenthesis