ANSWER: 3x^2 + 6
4x^2 + 1 - (x^2 - 5) = 3x^2 + 6
The sample mean of the random sample is 50
The margin of error (E) is the amount of error allowed in the random sample.
The confidence interval (CI) is given by:
CI = μ ± E = (μ - E, μ + E)
Given a confidence interval of (38.02, 61.98), hence:
μ - E = 38.02 (1)
μ + E = 61.98 (2)
Hence solving equations 1 and 2 simultaneously gives:
μ = 50, E = 11.98
Hence the sample mean of the random sample is 50
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Answer:
5 times 5 is 25
Step-by-step explanation:
Answer:
12.5 inches
Step-by-step explanation:
2 / 4 = 0.5
0.5 in = 10ft
0.5 x 25 = 12.5
Answer:
A and E
When doing problems like these it is easier just to see what numbers are divisbale by the ration.
Example:
A: 21/30
21 is divisable by 7 and 30 is divisbale by 10
E: 35/50
35 is divisable by 7 and 50 is divisbale by 10
