Answer:
Step-by-step explanation:
Given
The attached triangle
Required
Find x
Considering angle 30 degrees,
Using the tangent formula:
Make x the subject
Answer:i think its 183
Step-by-step explanation
1560 devided by 85= 18.3 but just take away the decimal
Answer:
The z-distribution should be used for this problem.
Step-by-step explanation:
The population distribution is assumed to be normal. Which distribution to use?
If we have the standard deviation for the sample, we use the t-distribution.
If we use the standard deviation for the population, we use the z-distribution.
There is a known standard deviation of 2.2 minutes.
This means that 2.2 is the population standard deviation, and thus, the z-distribution should be used for this problem.
Answer:
3x^2 or 3x squared
Step-by-step explanation:
4x^2-x^2=3x^2
4x squared-x squared equals x squared
when subtracting squared it's like subtracting normal numbers
