Answer: First option is correct.
Step-by-step explanation:
Enrollment month Actual Predicted Residual
January 500 8 4
February 400 15 -1
March 550 15 -1
April 13 12 -1
May 16 17 -1
June 14 15 -1
Since we know that
Residual value = Actual value - Predicted value
Sum of residuals is given by

since we can see that sum of residual is more than 0.
So, it can't be a good fit .
Hence, No, the equation is not a good fit because the sum of the residuals is a large number.
Therefore, First option is correct.
Answer:
V = 23π/6
Step-by-step explanation:
V = 2π ∫ [a to b] (r * h) dx
y = −x² + 23x − 132
y = −(x² − 23x + 132)
y = −(x − 11) (x − 12)
Parabola intersects x-axis (line y = 0) at x = 11 and x = 12 ----> a = 11, b = 12
r = x
h = −x² + 23x − 132
V = 2π ∫ [11 to 12] x (−x² + 23x − 132) dx
V = 23π/6
Answer:
(4x - 11i)(4x -+11i)
Step-by-step explanation:
Factor as a difference of squares
a² - b² = (a - b)(a + b)
note that i² = - 1
Given
16x² + 121
= (4x)² - (11i)²
= (4x - 11i)(4x + 11i)
Answer:
MN = LK because of the definition of a 'parallelogram'.
Step-by-step explanation:
We are given a parallelogram KLMN.
We know that a 'parallelogram' is a quadrilateral which have two opposite sides parallel and equal in length.
Therefore, from parallelogram KLMN, we get,
MN║LK and ML║NK
MN = LK and ML = LK.
Hence, we that MN = LK because of the definition of a 'parallelogram'.
300 miles/5 hours=60 miles per hour
420 miles/7 hours=60 miles per hour
therefore they both have an equivalent proportion of 60 miles per hour