Answer:
looks like 9.5, but kinda hard to tell
Answer:
image not loading sorry
Step-by-step explanation:
The approximate probability that the weight of a randomly-selected car passing over the bridge is more than 4,000 pounds is 69%
Option C is the correct answer.
<h3>What is Probability ?</h3>
Probability is defined as the study of likeliness of an event to happen.
It has a range of 0 to 1.
It is given in the question that
The weights of cars passing over a bridge have a mean of 3,550 pounds and standard deviation of 870 pounds.
mean = 3550
standard deviation, = 870
Observed value, X = 4000
Z = (X-mean)/standard deviation = (4000-3550)/870 = 0.517
Probability of weight above 4000 lb
= P(X>4000) = P(z>Z) = P(z> 0.517) = 0.6985
The approximate probability that the weight of a randomly-selected car passing over the bridge is more than 4,000 pounds is 69%
To know more about Probability
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Answer:
![\sqrt[3]{3}](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B3%7D)
Step-by-step explanation:
use the Pythagoras Theorem
Since you have the hypotenuse (6"), just go backwards. 62 = 36 = a2 + b2.
Answer:
<em>The integers are 39 and 40.</em>
Step-by-step explanation:
Let the smaller integer be x.
The next greater integer is x + 1.
Their sum is x + x + 1.
Their sum is 79, so
x + x + 1 = 79
Solve for x.
2x + 1 = 79
2x = 78
x = 39
x + 1 = 40
