Question 1:
Choir A - 129.5 = 130
Choir B - 130.1 = 130
Choir C - 130.8 = 131
Choir D - 129.8 = 130
Answer - Choir C
Question 2:
132 = 1/2x + 2(x - 9)
= 1/2(60) + 2(60 - 9)
= 30 + 102
= 132
60 - 9 = 51
Answer - The cost of a children's ticket is $51
2(x - 5)² + 13 = 31
2(x - 5)(x - 5) + 13 = 21
2(x(x - 5) - 5(x - 5)) + 13 = 21
2(x(x) - x(5) - 5(x) + 5(5)) + 13 = 21
2(x² - 5x - 5x + 25) + 13 = 21
2(x² - 10x + 25) + 13 = 21
2(x²) - 2(10x) + 2(25) + 13 = 21
2x² - 20x + 50 + 13 = 21
2x² - 20x + 63 = 21
<u> - 21 - 21</u>
2x² - 20x + 42 = 0
2(x²) - 2(20x) + 2(21) = 0
<u>2(x² - 20x + 21)</u> = <u>0</u>
2 2
x² - 20x + 21 = 0
x = <u>-(-20) +/- √((-20)² - 4(1)(21))</u>
2(1)
x = <u>20 +/- √(400 - 84)</u>
2
x = <u>20 +/- √(316)
</u> 2
x = <u>20 +/- 2√(79)</u>
2
x = 10 <u>+</u> √(79)
x = 10 + √(79) U x = 10 - √(79)
<u />
Furthermore,
Notice that
Therefore, function g(x) is equal to function f(x) if we dilate f(x) by a factor of 9 and shift it 22 units upwards.
Aprils rainy day total would be different.
January would be 20, because 8 is bigger than 5.
February will be 20 as well, because 6 is bigger than 5.
And March would be 20 as well, because 7 is bigger than 5.
The only one that is not bigger than 5 is April, it is only 4. So it would be 10.
I hope this helps. If you have any other questions, about this or any other question, just ask. I am here to help you. As needed.
Answer:
y = 4x + 2
Step-by-step explanation:
This is the formula: 
y - 2 = 4(x - 0) (distribute the 4)
y - 2 = 4x (add 2 on both sides)
y = 4x + 2
That's all she wrote!
Hope this helps ya!!
