Answer:
B. 30
Step-by-step explanation:
3x + 2x + x = 180 (angle sum of a triangle is 180)
6x = 180
x = 30
Answer: The quantity of the water received by each student = 3.75 liters.
Step-by-step explanation:
Given: Total water = 18.75 liters
Total students =5
If each student in the group used the same amount of water for their experiment, then the quantity of the water received by each student = 
The quantity of the water received by each student = 3.75 liters.
Answer:
2:9
Step-by-step explanation
4:18 divided by 2 is the lowest it can go so 4 divided by 2 is 2
18 divided by 2 is 9 so,
2:9
Answer:
1/40
Step-by-step explanation:
Answer: Bottom-Right corner
The points are (-5,6) (-5,-6) (4,-6)
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Explanation:
What you do is go through each of the answer choices, plot the points, and see which give you a right triangle. A right triangle has one 90 degree angle.
The upper-left choice leads to an obtuse triangle, so we can cross that off the list. It turns out that the other choices lead to right triangles.
The upper-right choice has a hypotenuse of roughly 11.18, so that's also eliminated
The bottom-left choice has a hypotenuse of 10.82, which means we cross that off the list
The bottom-right choice has a hypotenuse of 15, so we found the answer
Note: you use the distance formula to find the length of the hypotenuse. The distance formula is
d = sqrt((x1-x2)^2+(y1-y2)^2)
