Answer:
48.6
Step-by-step explanation:
Substitute 2 for x and 3 for y
Multiply
Simplify by rounding then add to arrive at
Answer
To find the margin of error, multiply the z-score by the standard deviation, then divide by the square root of the sample size.The z*-score for a 90% confidence level is 1.645.The margin of error is 0.20.The confidence interval is 48.3 to 48.7.48.8 is not within the confidence interval.
Answer:
Let B = the weight of box B
Let 2B = the weight of box A
Let 2B + 30 = the weight of box C
B + 2B + 2B + 30 = 640
5B = 610
B = 122 pounds, weight of box B
2B = 2(122) = 244 pounds, weight of box A
2B + 30 = 2(122) + 30 = 274 pounds, weight of box C
hope this helps
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<span>Construct the perpendicular to BC¯¯¯¯¯ through point R.</span>
I'm sorry not to have the full answer but I do believe it is either graph W or Z!
