You can either do this on the calculator, or in your head. As its a larger number, it is worth doing it on the calculator.
413/14= 29.5
The alternative method is to list all of the tens multiples, and the smaller multiples when you're getting close to the answer, and this will be able to help you.
14x10= 140
14x20=280
14x30= 420 (which is slightly too big)
14x29= 406 (slightly too small)
14x29.5= 413
Hope this helps :)
Answer:
Circumference = 2 x pi x r
Radius, r = 7/2
Circumference = 2 x 22/7 x 7/2
= 22 cm
Answer:
We are required to find the proportion of observations from a normal distribution that are greater than 1.36. Mathematically, it can be written as:
To find this proportion, we can use the standard normal table. Using the standard normal table, we have:
Therefore, the proportion of observations from a standard normal distribution that take values greater than 1.36 is 0.0869.
A 2/3 pi x ^2 is the best choice
