If they do not have a line of best fit this may be because there is no correlation
<span> To get an explicit formula, we need to find an expression which gives the n-th term without having to compute earlier terms in the sequence. Looking at the numbers, and from the recursive formula, we see that the sequence is built by subtracting n from the previous term. This is similar to the triangular number sequence 1,3,6,10,15,... which has the explicit formula a_n = n(n+1)/2. In our case we are subtracting n from the previous term, so we multiply by -1/2 instead of 1/2. However, we also need to add a constant term to reproduce the numbers of the sequence. We can write a_1 = -1(2)/2 + c = 8. Therefore, c = 9.
So the explict formula is:
a_n = -n(n+1)/2 + 9</span>
T = 44
j = 50
t - j = 6ft/sec
120ft ÷ 6ft/sec = 20s
(44 * 20) + 120 = 880 + 120 = 1,000 ...
50 * 20 = 1,000 ...
Ans = 20 secs...//
Answer:
The area of the sector (shaded section) is 29.51 .
Step-by-step explanation:
Area of a sector = (θ ÷ 360)
where θ is the central angle of the sector, and r is the radius of the circle.
From the diagram give, diameter of the circle is 26 m. So that;
r =
= = 13 m
θ = 360 - (180 + 160)
= 360 - 340
=
Thus,
area of the given sector = x x
= x x x 169
= 29.5079
The area of the sector (shaded section) is 29.51 .
Answer:
The last one
Step-by-step explanation:
In a right triangle the expression of the sin is the quotiont of the opposite side and the hypotenuse
- sin x° =