Select the expression equivalent to (4x-6)-(7x+8) 11x + 2
-3x - 14
-11x + 2
-3x + 14

Which pair of angles are vertical angles? ∠1 and ∠4 ∠1 and ∠2 ∠2 and ∠4 ∠2 and ∠3

Given (1+cosx)/(sinx) + (sinx)/(1+cosx) =4, find a numerical value of one trigonometric function of x. a. tanx=2 b. sinx=2 c. tanx=1/2 d. sinx=1/2

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.