Answer:
2401
Step-by-step explanation:
Given that we want to estimate average income in a population.
The standard deviation of income in the population is $1,000
We want confidence interval around our estimate to be +/- $40
i.e Margin of error = 40
We know that margin of error = Std error * Z critical for 95%
i.e. 
Std error = 
Together we get
Answer:
<h2>
12.5 units
</h2>
Step-by-step explanation:
Given figure : Trapezoid
Base sides,
a = 2.5
b = 7.5
Height ( h ) = 2.5
Now, finding the area:
Plug the values
Calculate the sum
Reduce the numbers with G.C.F 2
Calculate the product
Hope this helps...
Best regards!
Answer:
(x+8)(x+6)
Step-by-step explanation:
14=6+8
48=6*8
x^2+6x+8x+48
x(x+6)+8(x+6)
(x+8)(x+6)
I'm guessing you mean laps here
Let's find out how many meters are in a kilometer. Kilo is 1000 more than a single unit, so for every kilometer you have 1000 meters.
so divide 1000/6 to find the amount of laps to swim 1 kilometer
166.6667
