Point J is located at (2,5)(2,5) and point K is located at (4,19)(4,19).
1 answer:
You might be interested in
Answer:
P(X<118.81)=0.0803
Step-by-step explanation:
Assuming the distribution for the mean life is approximately normal, with mean 120 months and variance 64 months^2, we can calculate the parameters for a sampling distribution with sample size = 89 computers.
The sampling distribution mean will be equal to the mean for a single computer:
The standard deviation will be adjusted by the sample size as:
With these parameters, we can calculate the z-score for X=118.81.
Then, the probability that the mean of a sample of 89 computers is less than 118.81 months is:
<h3>Answer: 65/63</h3>
=================================================
Explanation:
Draw a right triangle in the first quadrant, aka northeast quadrant, as shown in the diagram below.
Cosecant involves the ratio of hypotenuse over opposite. It's the reciprocal of sine
sin(angle) = opposite/hypotenuse
csc(angle) = hypotenuse/opposite
since csc = 1/sin
Use the pythagorean theorem to solve for b in the diagram
a^2+b^2 = c^2
16^2+b^2 = 65^2
256+b^2 = 4225
b^2 = 4225-256
b^2 = 3969
b = sqrt(3969)
b = 63
So this is the adjacent side. The secant ratio involves hypotenuse over adjacent (it's the reciprocal of cosine).
sec(angle) = hypotenuse/adjacent
sec(A) = 65/63
Answer:
It travels for 1 h, then stops for 1 h, and finally travels again for 3 h.
Step-by-step explanation:
The sloped parts of the graph are where the car is moving.
For example, in the first hour the distance travelled changes from zero to 12 mi.
The horizontal part of the graph is where the car is stopped.
For example, between hours 1 and 2, the distance travelled stays the same at 12 mi.
The car travels for 1 h, then stops for 1 h, and finally travels again for 3 h.
