Answer:
8x+8
11x+3y
Step-by-step explanation:
it's just the normal addition if 1+2
Answer:
It is 91.01 m/s faster than the Singaporean sprinter
Convert km/hr to m/s
U get 101.38m/s (speed of bullet train)
Speed of the Singaporean sprinter is 10.37m/s
So subtracting the train speed from the sprinter's speed,
101.38 - 10.35= 91.01m/s
8x8x8=512
hope this is what its asking
Answer: point estimate = 3.88
Margin of error = 0.63
Step-by-step explanation:
Confidence interval is written in the form,
(Point estimate - margin of error, Point estimate + margin of error)
The sample mean, x is the point estimate for the population mean. Let m represent the margin of error. Since the confidence interval is given as (3.25 , 4.51), it means that
x - m = 3.25
x + m = 4.51
Adding both equations, it becomes
2x = 7.76
x = 7.76/2
x = 3.88
Substituting x = 3.88 into x + m = 4.51, it becomes
3.88 + m = 4.51
m = 4.51 - 3.88
m = 0.63
