Use a calculator to evaluate sec 85°. a:-1.016. b:-5.679. c:1.004. d:11.474

The correct answer to this question is this one: "D. 11.474"

your calculator probably doesn't do "secant". But sec is 1/cos

so do cos (85) (in degree mode, not radian mode) then "invert it": 1 / ANS or x^-1 if you have that key

or type

1/cos (85 degrees) = 11.4737