Answer:
17 units
Step-by-step explanation:
Going from one point to the other, the change in x is 15 and that in y is 8. Therefore, applying the Pythagorean Theorem,
distance = √(225 + 64) = √289 = 17
The distance between the two points is 17 units.
Answer:
x = 3
Step-by-step explanation:
12x = 36
simply 12 will go to the other side and switches to the opposite sign for example + will be -
× will br ÷
so 36 ÷ 12 =3
x = 3
So it is 18+7 which is 25 and you make the fraction out of the total books (50).
the fraction is 25/50 which is 0.50 as a decimal
Answer:
The required sample size is 171.
Step-by-step explanation:
Consider the provided information.
The engineer wants to estimate the average life within plus or minus 15 hours with 95 percent confidence. Assuming a process standard deviation of 100 hours,
First calculate the value of
By using the table we get.
Now use the formula:
Substitute the respective values in the above formula we get.
Hence, the required sample size is 171.