A nursery owner buys 9 panes of glass to fix some damage to his greenhouse. The 9 panes cost $22.95. Unfortunately, he breaks
2 answers:
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Answer:
B. 455
Step-by-step explanation:
The order in which the toppings are chosen is not important. So we use the combinations formula to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
In this question:
3 toppings from a set of 15. So
455 3-topping sundaes can be made.
See the attached image below for the drawing.
Point G = midpoint of segment DE
Point H = midpoint of segment FD
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Add up the x coordinates of points D and E, then divide by 2. So you should get (x1+x2)/2 = (0+2)/2 = 2/2 = 1. This is the x coordinate of point G.
Repeat for the y coordinates of D and E. So we have (y1+y2)/2 = (7+0)/2 = 7/2 = 3.5
Therefore point G is located at (x,y) = (1, 3.5)
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These steps will be repeated to find the midpoint H
Add up the x coordinates of F and D, then divide by 2. So, (x1+x2)/2 = (6+0)/2 = 6/2 = 3
Do the same for the y coordinates: (y1+y2)/2 = (7+0)/2 = 7/2 = 3.5
Point H is located at (3, 3.5)
