Answer:
Step-by-step explanation:
A median is a line that joins the angle vertex to the the point that is located at 1/2 the distance across the the line.
Where the medians meet is the centroid.
The centroid divides the median into a ratio of 2 to 1.
HM/ML = 2/1
ML = 20
HM / 20 = 2/1 Multiply both sides by 20
HM = 2 * 20
HM = 40
Answer:
a) d= 2x + (54/x)
b) x = √27 m ≈ 5.2 m
Step-by-step explanation:
a) Given
The average number of drops = n
Height in meters from the point where the whelk is dropped = x
If n(x) = 1 + (27/x²)
Then, the total vertical distance the crow travels upward to open a whelk is the height (x) times the average number of times the crow has to fly upwards to try again
d = 2xn = 2x*(1 + (27/x²)) = 2x + (54/x)
b) To minimize the distance consider the first derivative
d' = (2x + (54/x))' = 2 - (54/x²)
and d' = 0 give us (x must be positive)
2 - (54/x²) = 0 ⇒ x = √27 m ≈ 5.2 m
Answer:
x>22
Step-by-step explanation:
Solve the inequality:
-3x<-14-52
-3x<-66
x>22
( You have to switch the sign because you are dividing by a minus)
Answer:
2.6
Step-by-step explanation:
by similar property
Answer:
12 m³
Step-by-step explanation:
4 x 2 x 1.5 = x
4 x 2 = 8
1.5 x 8 = 12