Sara got 88, 90, 75, 78, 100, 54, 90, 100, 45, and 60 on her English tests. Lee got 77, 67, 99, 79, 100, 65, 79, 89, 58, and 67
satela [25.4K]
The mean is the average, so I added up all the numbers and divided that by the number of tests:
Sara's mean: 78
Lee's mean: 78
The answer is A.
Parallel lines have the same slope, which is 1/2 in this problem. The equation of the line in A matches the slope of 1/2 and also passes through (-8,0). You can check that it does by substituting the x and y values in the equation, like this:
0 = 1/2(-8) + 4
0 = -4 +4
0 = 0 which checks!
Yes 24 is a bigger number than 10 duh...
Answer:
4/11=.363636....
I hope this is good enough:
Answer:
(x - 5)² = 39
Step-by-step explanation:
Given
x² - 10x = 14
To obtain an equivalent equation use the method of completing the square.
add ( half the coefficient of the x- term )² to both sides
x² + 2(- 5)x + 25 = 14 + 25
(x - 5)² = 39
