Answer:
Step-by-step explanation:
hello :
g(x) = (x+2)(x-4)/(x+2)(x-1)
1 ) this function no exist for if : x= -2 and 1
so the denominater is : (x+2)(x-1)
so : b= 2 and c=1
2) the x- intercept is : 4
so the numerater is : (x+2)(x-4)
g(x) =0 if : (x+2)(x-4)=0
means x-4=0 ... ( x+2 ≠ 0)
note :
g(x) ≠ (x-4)/(x-1) except in the case x ≠ -2
Answer:
7 feet is the length of the blade of the windmill.
Step-by-step explanation:
We have the equation
h = 7 sin(pi/21t) + 28 ------ eq1
At time 't' = 0, the end of the blade is pointing to the right parallel to the ground meaning it is at the same height as the other end. (Ф = 0°)
So, by calculating the maximum height of this end at Ф = 90°. we can calculate the length of the blade.
Now, we know that a general model equation of a circular simple harmonic motion is represented as : y = A sinωt + k ----- eq2
Where A is the amplitude that is, maximum displacement from mean to maximum position.
ω is the angular frequency.
Comparing eq1 and eq2:
A = 7
so the difference in blades end height at Ф = 0° and Ф = 90° is 7 feet.
Hence, the length of the blade is 7 feet.
Which relation represents a function? A. {(0, 3), (2, 4), (0, 6)} B. {(-7, 5), (-7, 1), (-10, 3), (-4, 3)} C. {(2, 0), (6, 2), (
xz_007 [3.2K]
If there are two of the same x values in a set, it is not a function. Therefore, the answer is D. Hope this helps, and please mark brainliest!
Use a calculator. The sine of 78 degrees is .98.
Answer:
20:48
Introduction to scientific notation (video)
Step-by-step explanation:
