The answer is y=c-10. The explanation for that is you subtract the 10 from the left side and the right side. Hope that helps!
Answer:
(A) Mean = 84
(B) Variance = 118.714
(C) Standard deviation = 10.89
Step-by-step explanation:
Data provided:
number of observations, n = 15
sample of 15 costco customer satisfaction scores follow
X
95 11 121
90 6 36
83 -1 1
64 -20 400
95 11 121
98 14 196
80 -4 16
83 -1 1
82 -2 4
93 9 81
86 2 4
80 -4 16
94 10 100
75 -9 81
62 -22 484
================================================
∑X = 1260 ∑= 1662
Now,
(A) Mean =
or
Mean = = 84
(B) Variance =
or
Variance =
or
Variance = 118.714
(C) Standard deviation = √Variance = √118.714 = 10.89
Answer:
Step-by-step explanation:
use SOH CAH TOA to remember how sin , cos and tan fit with a triangle
lets use SOH since we have the Hypotenuse and we want to find the Opposite side from the angle.. of 38° then
sin(38) = Opp/ 15
15 sin(38 ) = Opp ( the opposite side is the height of the pole )
4.4455m = Opp
so the flag pole is 4.45 meters tall or close to that
Ox=-2 is the answer i think
If P(x) = ax^4 + bx^3 + cx^2 + dx + e has roots at x = 1, 2, 3, 4, then
0 = a + b + c + d + e0 = 16 a + 8b + 4c + 2d + e0 = 81 a + 27b + 9c + 3d + e0 = 256 a + 64 b + 16c + 4d + e
P(0) = 48 e = 48
There are five equations, five unknowns, hence the linear equations can be solved. a is equal to 2, b is equal to -20, c is equal to 70, d is equal to -100 and e is equal to 48