Answer:
All whole numbers and their opposites are integers. Examples below!
Step-by-step explanation:
1 -1
2 -2
3 -3
And so on I can't tell if you have any whole numbers alone in this question so gave you examples. By the Way, only whole number and their negatives are considered integers.
"nine times out of ten" means we have 9/10 = 0.90 = 90% confidence interval.
The center of each interval is 0.80 as this is the mean test score. The margin of error is 0.06 from the statement "within 6% of...". Put another way, the teacher is basically saying that they are 90% confident to find a test score between 74% and 86%
This is because
0.8 - 0.06 = 0.74
0.8 + 0.06 = 0.86
So that's why the confidence interval is (0.74, 0.86)
Answer:
Step-by-step explanation:
4) 3x+ 42 + 90= 180
3x + 132 = 180
3x = 180 -132
3x = 48
x = 48/3
x = 16
