Rationalize the denominator, divide by 4, add 2.
Answer:
Step-by-step explanation:
189² = 215² + 123² - 2(215)(123)cos x°
35,721 = 46,225 + 15,129 - 52,890 cos x°
35,721 = 61,354 - 52,890 cos x°
52,890 (cos x° ) = 25,633
cos x° = 25,633 ÷ 52,890 ≈ 0.4846
x° ≈ 61.01°
The equation of line passing through points (4.5. 0) and (0, 9) is y = -2x + 9.
<h3>What is the equation of a line passing through two given points in a 2-dimensional plane?</h3>
Suppose the given points are (x_1, y_1) and (x_2, y_2), then the equation of the straight line joining both two points is given by
The graph of the picture shows two clear points (4.5. 0) and (0, 9)
Hence, the equation of line passing through points (4.5. 0) and (0, 9) is y = -2x + 9.
Learn more about straight-line equations here:brainly.com/question/380976
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Answer:
18
Step-by-step explanation:
Few numbers of the students are standing in a circle.
Students are evenly spaced and given that the 6th student is directly opposite to the 15th student.
So, in the half-circle, there are ( 15 - 6 ) = 9 students spaced evenly.
Therefore, in the full circle, there will be all together ( 9×2 ) =18 students evenly spaced. (Answer)
Answer:
map
Step-by-step explanation: