<h3>Answer;</h3>
C. The alternative form of the law of cosines
When given all three side lengths of a triangle but none of the angle measures, you can solve for all angle measures using<u> the alternative form of the law of cosines</u>.
<h3>Explanation;</h3>
- From the law of cosines, given that a, b and c are the edges of a triangle and A, B and C are the corresponding interior angles of the the triangle.
<h3>Then; a² = b² + c² − 2 bc cos A, or</h3><h3> b² = a² + c² − 2 bc cos B, or</h3><h3> c² = a² +b ² − 2 bc cos C</h3>
Therefore; when given all the sides or edges of the triangle;
- we can use the law of cosines to find one angle, then
- we use the law of cosines again to find the second angle, and finally,
- we use the point that angles in a triangle add up to 180 to get the third angle;
<h3 />
In mathematical expression, You can write it as:
x/13 ≥ 4
Multiply both sides by 13,
x/13 * 13 ≥ 4 * 13
x ≥ 52
In short, Your Answer would be x ≥ 52
Hope this helps!
174% is the answer, just multiply the whole thing by 2/2 considering percentages are a fraction of 100
Answer:
Option C) 146.5
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 130 weeks
Standard Deviation, σ = 10 weeks
We are given that the distribution of completion time is a bell shaped distribution that is a normal distribution.
Formula:
P(X<x) = 0.95
We have to find the value of x such that the probability is 0.95
P(X < x)
Calculation the value from standard normal z table, we have,
The project should be completed in 146.5 weeks or less.
Hence, 146.5 weeks should be set the due date such that there is a 95 percent chance that the project will be finished by this time.
Answer:
C
To find the area of a circle, use the equation A =