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1 answer:
Step-by-step explanation:
Total number of people = 60
Ratio of men to women = 1:2
Total ratio of men to women or Total parts = 1 + 2 = 3 parts
Number of men = 1/3 × 60
Number of men = 20 men
Given number of men who passed = 17 men
Therefore number of men who failed = 20 - 17
number of men who failed = 3 men
Number of women = 2/3 × 60
Number of women = 40 women
Number of people who failed = 1/5 × 60
Number of people who failed = 12 people
And number of women who failed = 12 - 3
number of women who failed = 9 women
Number of women who passed = 40 - 9
Number of women who passed = 31 women
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Answer: (-2, 5) and (2, -3)
<u>Step-by-step explanation:</u>
Graph the line y = -2x + 1 (which is in y = mx + b format) by plotting the y-intercept (b = 1) on the y-axis and then using the slope (m = -2) to plot the second point by going down 2 and right 1 unit from the first point:
y - intercept = (0, 1) 2nd point = ( -1, 1).
Graph the parabola y = x² - 2x - 3 by first plotting the vertex and then plotting the y-intercept (or some other point):
vertex = (1, -4) 2nd point (y-intercept) = (0, -3)
<em>see attached</em> - the graphs intersect at two points: (-2, 5) and (2, -3)
