The formula of the area of the equilateral triangle:

The formula of the area of the rectangle:


The formula of the volume of the triangular prism:
What number is 25% of 64....
x = 0.25(64)
x = 16 <=== ur solution
Answer:
8.28 is the difference in times in which the students completed the lap.
Step-by-step explanation:
Subtract 74.20 and 65.92 and that gives you your answer.
The sum of the first four terms of the sequence is 22.
In this question,
The formula of sum of linear sequence is

The sum of the first ten terms of a linear sequence is 145
⇒ 
⇒ 145 = 5 (2a+9d)
⇒ 
⇒ 29 = 2a + 9d ------- (1)
The sum of the next ten term is 445, so the sum of first twenty terms is
⇒ 145 + 445
⇒ 
⇒ 590 = 10 (2a + 19d)
⇒ 
⇒ 59 = 2a + 19d -------- (2)
Now subtract (2) from (1),
⇒ 30 = 10d
⇒ d = 
⇒ d = 3
Substitute d in (1), we get
⇒ 29 = 2a + 9(3)
⇒ 29 = 2a + 27
⇒ 29 - 27 = 2a
⇒ 2 = 2a
⇒ a = 
⇒ a = 1
Thus, sum of first four terms is
⇒ 
⇒ 
⇒ S₄ = 2(2+9)
⇒ S₄ = 2(11)
⇒ S₄ = 22.
Hence we can conclude that the sum of the first four terms of the sequence is 22.
Learn more about sum of sequence of n terms here
brainly.com/question/20385181
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Answer:
4/5
Step-by-step explanation:
16/20 in a simpler form is 8/10. 8/10 in the simplest form is 4/5 (division)