Plan a has a fee of $50 plus an additional fee of $0.05 per minute. with this plan, the first 500 minutes are free.
plan b has a fee of $20 plus an additional fee of $0.06 per minute. with this plan, the first 200 minutes are free.

after how many minutes would both options cost the same amount?

Which of the following values are in the range of the function graphed below? check all that apply ! - will give the answer "brainliest! "

Statement reason 1. δabc is similar to δced. given 2. 3. definition of slope 4. slope of slope of definition of slope 5. slope of × slope of multiplying the slopes 6. slope of × slope of substitution property of equality 7. slope of × slope of simplifying the right side the table contains the proof of the relationship between the slopes of two perpendicular lines. what is the reason for statement 2? a. parallel line segments that meet a common perpendicular line are proportional in length. b. the lengths of vertical and horizontal sides in congruent triangles are in a common ratio. c. trigonometric identities determine the lengths of the legs in a right triangle. d. corresponding side lengths in similar triangles are proportional in length.

If 0° ≤ θ ≤ 90° and cosθ = 11 15 , what is the value of sin (90° - θ)? a) 11 /15 b) 15/ 11 c) 15 /4 d) 4/15