Step-by-step explanation:
20% (100) + 15% (93) + 45% (86) + 20% (81)
= 20 + 13.95 + 38.7 + 16.2
= 88.85
Her course average is 88.85% (or 89%, rounded to the nearest integer).
Answer:
8.64
Step-by-step explanation:
12% = 0.12
72(0.12) = 8.64
Answer:
Step-by-step explanation:
The point-slope form of an equation of a line:
<em>m</em><em> - slopei</em>
The formula of a slope:
======================================
We have the points (-3, 0) and (4, 2).
Substitute:
Put the value of the slope and the coordinates of the point (-3, 0) to the equation:
Converto to the slope-intercept form (<em>y = mx + b</em>):
If you'd graph this function, you'd see that it's positive on [-1.5,0], and that it's possible to inscribe 3 rectangles on the intervals [-1.5,-1), (-1,-0.5), (-0.5, 1].
The width of each rect. is 1/2.
The heights of the 3 inscribed rect. are {-2.25+6, -1+6, -.25+6} = {3.75,5,5.75}.
The areas of these 3 inscribed rect. are (1/2)*{3.75,5,5.75}, which come out to:
{1.875, 2.5, 2.875}
Add these three areas together; you sum will represent the approx. area under the given curve on the given interval: 1.875+2.5+2.875 = ?
What kind of question is this mr chow is not happy
