What value of x makes this equation true? 6x/-4=6(-1/2) a) -2 b)2 c)3 d)-3
1 answer:
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The wheel turned a total of 300 times in 1,884 feet.
Step-by-step explanation:
Step 1:
The wheels of the bicycle have a diameter of 24 inches. So the radius of the wheels is 12 inches.
To determine how many times the wheel turns we divide the distance traveled by the circumference of the wheels.
The circumference of a circle is given by multiplying 2π with the radius.
The circumference of the wheel
The circumference of the wheel is 75.396 inches.
Step 2:
Gia traveled 1,884 feet, we need to convert this into inches.
If 1 feet = 12 inches, 1,884 feet = 22,608 inches.
The number of times the wheel turned
Rounding this off, we get that the wheel turned a total of 300 times in 1,884 feet.
Answer: 0.0228
Step-by-step explanation:
Given : The mean and the standard deviation of finish times (in minutes) for this event are respectively as :-
If the distribution of finish times is approximately bell-shaped and symmetric, then it must be normally distributed.
Let X be the random variable that represents the finish times for this event.
z score :
Now, the probability of runners who finish in under 19 minutes by using standard normal distribution table :-
Hence, the approximate proportion of runners who finish in under 19 minutes = 0.0228