Answer:
h = 
Step-by-step explanation:
Area (A) of a triangle = 
× base (b) × height (h)
i.e A = bh
h =
Answer: 0.122449
Step-by-step explanation:
If one side is 1/7, first convert that into a decimal, which is 0.14286. Than square that 0.14286 x 0.14286= 0.020408. That’s the area of one square. Now multiply that by 6 (the number of sides in a cube) and you get 0.122449.
Answer:
100×8 > 25×(4×8)
Step-by-step explanation:
800>780
Answer:
x = 25
Step-by-step explanation:
2/5x - 1 = 9
Add 1 to both sides
2/5x = 10
Multiply by 5 on both sides
2x = 50
Divide by 2 on both sides
x = 25
Check the answer:
Plug in 25 for x
2/5(25) - 1 = 9
10 - 1 = 9
9 = 9
The answer is correct.
Answer:
x`= ∑x P (x)
Step-by-step explanation:
The mean ca be calculated using the formula
x`= ∑x P (x) where x takes the value from 1,2,3,4......i
The sampling distribution is the probability distribution or the relative frequency distribution of the means X` of all possible random samples of the sample size that could be selected from a given population. The mean of this distribution is represented by Ux` and the standard deviation which is called the standard error of the mean S.E (X`)
The mean of the sampling distribution is equal to the population mean that is ux`= u whether the sampling is done with or without replacement.
