An archway is modeled by the equation y = -2x2 + 8x. a rod is to be placed across the archway at an angle defined by the equation x − 2.23y + 10.34 = 0. if the rod is attached to the archway at points a and b, such that point b is at a higher level than point a, at what distance from the ground level is point b? a.8 units b.6 units c.5 units d.3 units

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18

Jorge wants to determine the enlarged dimensions of a digital photo to be used as wallpaper on his computer screen. the original photo was 800 pixels wide by 600 pixels high. the new photo will be 1,260 pixels wide. what will the new height be?

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