Answer:
B. 2
Step-by-step explanation:
Based on the Midsegment of a trapezoid theorem:
GH = (BC + FE)/2
9x - 3 = (19 + (5x + 1))/2) (substitution)
9x - 3 = (20 + 5x)/2
Cross multiply
2(9x - 3) = 20 + 5x
18x - 6 = 20 + 5x
Collect like terms
18x - 5x = 20 + 6
13x = 26
Divide both sides by 13
x = 26/13
x = 2
123/0.75 =164
the answer is 164
Doing the same onee i need help!!
please
Answer:
A
The value is
B
The value is
Step-by-step explanation:
From the question we are told that
The population mean is
The standard deviation is
The sample size is n = 25
Generally the probability that a boy born full term in the US weighs less than 7 lbs is mathematically represented as
=>
From the z table the area under the normal curve to the left corresponding to -0.6364 is
=>
Generally the standard error of mean is mathematically represented as
=>
=>
Generally the probability that the average weight of 25 baby boys born in a particular hospital have an average weight less than 7 lbs is mathematically represented as
=>
From the z table the area under the normal curve to the left corresponding to -3.1818 is
=>
=>