Gavin is correct.
Because, Blaise did mistake in the 2nd step and after that all the steps became incorrect.
Blaise did 7x - 16x + 2
While it should be 7x - 16x - 2
It is 27/20 or another way to write it is 1 7/20 or 1.35
What change has been caused?
- y=2(x-15)²+3
- y=2(x-15+4)²+3
- y=2(x-11)²+3
Change in x (+4)
Means
- translation is 4units left
Option A
9514 1404 393
Answer:
-13 < x ≤ 4
Step-by-step explanation:
The round bracket means the lower limit is not included in the interval. The square bracket means the upper limit is included.
-13 < x ≤ 4
Let's assume
number of birds with 2 wings is x
number of birds with 4 wings is y
A nature museum has 2008 specimens of early birds
so,

Total of wings of 2 wings bird =2x
Total of wings of 4 wings bird =4y
The specimens have a total of 4384 wings
so, we get

we can divide both sides by 2

so, we get system of equations as


we can solve for x and y
We can subtract both equations





so,
number of birds with 2 wings is 1824
number of birds with 4 wings is 184.............Answer