Answer:
Approximately
n = 21 years
Step-by-step explanation:
Original height of the tree = 4 1/2 feet
Final height of the tree = 40 feet
Common difference = 1 3/4 feet per year
The data shows the question is an arithmetic progression
Tn = a + (n-1) d
Tn = 40
a = 4 1/2
d = 1 3/4
n = ?
Tn = a + (n-1) d
40 = 4 1/2 + ( n - 1) 1 3/4
40 = 9/2 + (n - 1) 7/4
40 = 9/2 + 7/4n - 7/4
40 = 18-7/4 + 7/4n
40 = 11/4 + 7/4n
40 - 11/4 = 7/4n
160-11/4 = 7/4n
149/4 = 7/4n
Divide both sides by 7/4
n = 149/4 ÷ 7/4
= 149/4× 4/7
= 149/7
n = 21.29 years
Approximately
n = 21 years
Answer:
See attachment for triangle
<em></em>
Step-by-step explanation:
Given
Shape: Equilateral triangle
Required
Draw the triangle
First, we determine the side lengths.
The perimeter of an equilateral triangle is:
So, we have:
Solve for Length
<em>See attachment for triangle</em>
Answer:
18
Step-by-step explanation:
18x9/0-12.6 x 14 x 13.2 = 18
The answer is B., valid because people were chosen randomly
This would make it a valid survey
Hope this helps!
;3
Answer:
A.
Step-by-step explanation:
that signs means that the value is not equal to the given value. So any number that q is, is not equal to 3.
