Answer:
The sample size must be approximately 1304.
Step-by-step explanation:
We are given the following in the question:
Population standard deviation = 15,500 miles
We have to construct a 92% confidence interval with margin of error of 1000 miles.
Margin of error =
Putting values, we get,
The sample size must be approximately 1304.
Answer:
(x+7)(x+2)
Step-by-step explanation:
If we multiply it out we get:
x * x = x^2
7 * x = 7x
2 * x = 2x
7 * 2 = 14
Add it all, we get: x^2 +9x+14
Therefore these are the factors
Answer:
a) 10cm
b) 11.6 cm( approximately)
Step-by-step explanation:
Use pythagorean theorem
7 is a prime number because it is only divisible by 1 and itself which is 7.
Answer:
Pythagorean Theorem:
a^2 + b^2 = c^2
6^2 + b^2 = 12^2
36 + b^2 = 144
b^2 = 108
b = 10.4
Let me know if this helps!