Answer:
2ab^2 + (-5ab^2) = 2ab^2 - 5ab^2 = - 3ab^2
the ab^2's stay the same...ur just messing with the coefficients.
so -3 + what is -6 ? -3 + (-3) = -6
therefore, -6ab^2 + (-3ab^2) = -6ab^2 - 3ab^2 = -3ab^2
so ur answer is : -3ab^2
Answer:
10001
Step-by-step explanation:
Answer:
PZ = 6
Step-by-step explanation:
Given WY + XZ = 28 and WP = 8, you know that WY is 2 times 8, which is 16.
Knowing that, you can subtract 16 from 28 to get 12 which is the length of XZ. PZ is half of XZ and therefore half of 12 which is 6.
Hope this helps!
Answer:
40/41
Step-by-step explanation:
cos = adjacent/hypotenuse
adj = 40, hyp = 41
Answer:
- L(t) = 727.775 -51.875cos(2π(t +11)/365)
- 705.93 minutes
Step-by-step explanation:
a) The midline of the function is the average of the peak values:
(675.85 +779.60)/2 = 727.725 . . . minutes
The amplitude of the function is half the difference of the peak values:
(779.60 -675.85)/2 = 51.875 . . . minutes
Since the minimum of the function is closest to the origin, we choose to use the negative cosine function as the parent function.
Where t is the number of days from 1 January, we want to shift the graph 11 units to the left, so we will use (t+11) in our function definition.
Since the period is 365 days, we will use (2π/365) as the scale factor for the argument of the cosine function.
Our formula is ...
L(t) = 727.775 -51.875cos(2π(t +11)/365)
__
b) L(55) ≈ 705.93 minutes