9^ ? 3^2 + 7^2
81 ? 9 + 49
81 > 58
c^ > a^2 + b^2
answer is obtuse triangle
Vertical angles are always equal. The vertical angles are the ones opposite each other. Therefore x would equal 40.
Answer:
The answer is in the attached file below
Step-by-step explanation:
Correct! lines that have undefined slopes are always parallel to the y-axis as the change in x is 0. A gradient is calculated by the change in y divided by the change in x and anything divided by 0 is referred to as undefined.

(calculation for a gradient)
Hope that helps sorry if its a bit confusing :)
Answer: Not proportional
Step-by-step explanation:
Ratio of pages read by Jim on Tuesday to minutes =
Ratio of pages read by Jim on Wednesday to minutes =
But 
Therefore, the ratios of pages read to minutes on Tuesday and Wednesday are not proportional.