Answer:
14.90 to 16.70 tons
Step-by-step explanation:
We are given;
Sample size; n = 49
Mean; x¯ = 15.8
Sample standard deviation; s = 3.85
At 90% Confidence interval, z = 1.645
Formula for confidence interval is;
CI = x¯ ± z(s/√n)
Thus;
CI = 15.8 ± 1.645(3.85/√49)
CI = 15.8 ± 0.90
CI = 14.90 to 16.70 tons
<span>How can you use addition and subtract to put together and separate measures of an angle and its parts
Adding and Subtracting angles can be put this way.
Complementary angles can be formed by two angles with total of 90 degrees.
</span><span>Supplementary angles can be formed by two angles with total of 180 degrees.
</span>
X + Y = 90 degrees
Y = 90 - X
X = 90 - Y
X + Y = 180 degrees
Y = 180 - X
<span>X = 180 - Y</span>
Is there more to this question?
Answer:
we have centre of circle as (30,40) and radius = 1
Step-by-step explanation:
Given that a car is moving on a circle on a plane.
At time t (seconds),
and
when we square and add both the equations we get
(since sin square + cos square = 1 always)
i.e. we have centre of circle as (30,40) and radius = 1
