Yes, It represents a function
<span>ans : [ D ] 9P9 = 9! = 9*8*7*6*5*4*3*2*1 = 362,880 </span>
Answer:
The percentage change is 20%.
Step-by-step explanation:
Initial attendance was 500
Change in attendance is = 100
So, the changed attendance is either 400 or 600.
Percent change in attendance = 100 * (change in attendance/Initial Attendance)
= 100 * (1/5)
= 20%
Answer:
Two triangles are said to be similar if their corresponding angles are congruent and the corresponding sides are in proportion . In other words, similar triangles are the same shape, but not necessarily the same size. The triangles are congruent if, in addition to this, their corresponding sides are of equal length.
Step-by-step explanation:
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Answer:
We can write:
x + y = -2
xy = -80
We can rewrite the first equation as x = -y - 2 and then plug that into the second equation to get (-y-2) * y = -80 → -y² - 2y = -80 → y² + 2y - 80 = 0 → (y - 8)(y + 10) = 0 → y = 8, -10. Substituting these values into the first equation we get x = -10, 8 so the answer is (x₁, y₁) = (-10, 8) or (x₂, y₂) = (8, -10).
