The answer is 82ml. You add 75 and 7.
Answer:
a) when the slopes are equal
Step-by-step explanation:
The slopes of lines can be used to define the nature of lines.
Two parallel lines have equal slopes and the product of slopes of perpendicular lines is -1.
Hence, we can conclude that two distinct non-vertical lines parallel when
a) when the slopes are equal ..
So, option a is correct ..
There are 9 choices for the first digit: {0, 1, 2, 3, 4, 5, 7, 8, 9}
There are 10 choices for the second digit: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
There are 10 choices for the third digit: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
There are 5 choices for the fourth digit: {0, 2, 4, 6, 8}
Multiply the number of choices per digit to get: 9*10*10*5 = 90*50 = 4500
Answer: 4500
