Answer: 
Step-by-step explanation:
Given
The number of students in the first year is 800
The number of students in the second year is 950
The number of students in the third year is 1000
If this data is graphed on a pie chart, then the area percentage of area occupied by third years is
Now, the angle around the center of the circle is 
Answer:
y = -2(x + 3)² + 2
y = 2{ -(x + 3)²+ 1}
y = 2{ -(x² + 6x + 9) + 1}
y = 2{ -x² - 6x - 9 + 1}
y = 2{ -x² - 6x - 8 }
<u>y = -2 { x² + 6x + 8}</u>
OR
<u>y = -2{(x + 4)(x + 2)}</u>
Answer:
$1.05
Step-by-step explanation:
$.6 × 1.75 = 1.05$
So, we can say that the new pump is 1 and the old pump is 1.5 less efficient as the new pump. With this, is we were to say two of the new pumps, it would be 5 hours. However, because one is an old pump it would be 7.5 hours
