(a+b) + c = a + (b + c)
re-arrange the numbers - associative property of addition
Answer
Associative property of addition
84,000/15 = 5600
2 x 5600 = 11,200
The first person will get $11,200
Answer is From all those aforementioned, the true statement is: Thanh’s grade is 2.5 standard deviations below the mean of the test grades.
explanation
The z scores are standard deviations. If, for example, a tool returns a z score of +2.5, it means that the result is a standard deviation of 2.5. Very high or very low (negative) z scores associated
with very low p values are at the ends of the normal distribution.
F(g(7))= f(2×7+2)= f(16)= 4×16+21=85
Therefore: the answer is 85
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