The time (in number of days) until maturity of a certain variety of hot pepper is normally distributed, with mean μ and standard deviation σ = 2.4. this variety is advertised as taking 70 days to mature. i wish to test the hypotheses h0: μ = 70, ha: μ > 70, so i select a simple random sample of four plants of this variety and measure the time until maturity. the four times, in days, are 76 73 69 70 based on these data, i would reject h0 at level:

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.