The answer is x = 3 because is we substitute 3 for x, we get 6 on both sides. 3(3) - 3 = 2(3) (=) 9 - 3 = 6 (=) 6 = 6.
Answer: 0.5467
Step-by-step explanation:
We assume that the test scores for adults are normally distributed with
Mean :
Standard deviation :
Sample size : = 50
Let x be the random variable that represents the IQ test scores for adults.
Z-score :
For x =85
For x =115
By using standard normal distribution table , the probability the mean of the sample is between 95 and 105 :-
Hence, the probability that a randomly selected adult has an IQ between 85 and 115 =0.5467
Answer:
180 cubic millimeters
Step-by-step explanation:
The volume of a hexagonal prism can be found with the following formula:
The area of a hexagon is:
Upon, closer inspection, you'll notice that the formula for area of a hexagon is in the formula for volume of a hexagonal prism.
We already know the area of the hexagon base, so we can just plug it in into the volume formula.
V=30h
We ale aso know the height, which we can plug in.
V=30(6)
Simplify.
V=180
45 us liquid gallons/hour
Answer:
x=4
Step-by-step explanation:
Hey There!
So if DE is the midsegment then to find x you divide the length of AE by 2
8/2=4
Therefore x=4