Answer:
x=50
Step-by-step explanation:
To find the angle on the bottom left you would subtract 180-149 and get 31.
Then you would add 31 and 99 to get 130.
Then subtract 180-130 to get x=50 because all triangles equal 180 if you add all of the angles together.
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
t
=1
Answer:
(e) The researcher should use a t-distribution because they do not know the true standard deviation of daily sugar intake in Durham county.
Step-by-step explanation:
A t-distribution is used when the true standard deviation (population standard deviation) is unknown. t-distribution uses the standard deviation of the samples.
In this case, it is the sample standard deviation that is known, therefore, the researcher should use a t-distribution.
I think that answer would be C
