Answer: 6cm
Step-by-step explanation:
Area of a triangle is 1/2bh
B= base
H= height
Area = 30cm
Substitute the values into the formula
Area= 1/2bh
30=1/2×10×h
30=5h
H=30/5
H= 6cm
Height of the triangle is 6cm
Answer:
The critical value for the 90% confidence interval is
.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of
, and a confidence level of
, we have the following confidence interval of proportions.
In which
z is the z-score that has a p-value of
.
90% confidence level
So
, z is the value of Z that has a p-value of
, so
.
The critical value for the 90% confidence interval is
.
Answer:x= 0.5,−3
Step-by-step explanation:
Answer:
z=5
Step-by-step explanation: