Answer:
i. This is controlled experiment
ii. C. Whether the course was online or traditional and the statistical software used.
iii. B. The difference between students mean pre-test and post-test scores.
iv. D. 6
Step-by-step explanation:
This is controlled experiment because the university is observing students who take either online course or a standard course. The students have 3 different software available which they can learn. The students are observed based o pre test and post test results.
The average rate of each is 12 because if you calculate the slope of the points it equals 12.
Answer:
x = -7
Step-by-step explanation:
52 + 3x = -5x + 45 - 49
8x = -56
x = -7
Answer:
16x
Step-by-step explanation:
2x^2(x+3)
2 times 2 = 4
4x(x+3)
4x + 12x =
16x
