In an elementary school classroom, two students are given the task of cleaning the chalkboard. The first student can clean it by
2 answers:
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Answer:
Option C: 4√10
Step-by-step explanation:
From the geometric mean theorem, when we have this type of rectangle with a height of say "x" and left and right distances to this height as "a" and "b" respectively, then the theorem says that;
x/a = b/x
Applying it to this question;
Altitude is "m"
Left side measurement is 8
Right side measurement is 20
Thus;
m/8 = 20/m
Cross multiply to get;
m² = 160
m = √160
m = √(16 × 10)
m = 4√10
Answer:
10 units
Step-by-step explanation:
We are given two points on a plane;
(7 , -2) and (7 , 8)
We are supposed to determine the distance between the two points;
- To get the distance between two points on a plane, we should use modulus formula;
- Modulus =
Therefore, in this case;
Distance =
Therefore, the distance between the two points is 10 units.