Answer: the 6th person is 23
Step-by-step explanation
The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
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Answer:
Step-by-step explanation:
Step-by-step explanation:
Familiarize yourself with perfect squares in the neighborhood of 140:
10^2 = 100
11^2 = 121
12^2 = 144
Note that 140 is much closer to the perfect square than it is to the perfect square 121. The value of √140 must lie closer to 12 than to 11.
Place a point on the number line about 3/4 of the way from 11 to 12.
Answer:
= 
Step-by-step explanation:
The n th term of a geometric sequence is
= 
Substitute in values
= 320 × 
= 320 × 
= 
= = 0.625
Answer:
35
Step-by-step explanation:
sin is opposite over hypotenuse
sin x = 8/14
Square the entire thing which gets ride of the root so (8x+4)^2 now solve. 8x^2+4^2. 64x+16
