Answer:
6
Step-by-step explanation:
From the pythagorean theorem the square lenght of hypotenuse is equal to sum of square lenght of base and side
(6.5)^2 = x^2 + (2.5)
42.25 = x^2 + 6.25 subtract 6.25 from both sides
36 = x^2 and x = 6
Answer:
525
Step-by-step explanation:
Set up a ratio 35/140=?/2100. Solve this to get the answer.
Answer: The size of sample of 193 is needed.
Step-by-step explanation:
Since we have given that
Margin of error = 6%
At 90% confidence level, z = 1.645
Let p = 0.5
and q = 0.5
( because it is the most conservative estimation).
So, using formula, we get :

Hence, the size of sample of 193 is needed.
The answer is 3.80952380952
Answer:
1. symmetric property
2. associative property of multiplication
3. The set is closed under addition and not closed under subtraction
Step-by-step explanation: