Answer:
11.5
Step-by-step explanation:
Frank paid a total of 24.2 for the 2 CDs, so, for each CD, he paid the total value divided by two:
Price of each CD = 24.2 / 2 = 12.1
Each CD had a tax of 0.6, so, to calculate the price of each CD before tax, we just subtract the price of each CD by the value of the tax for each CD:
Price of each CD before tax = 12.1 - 0.6 = 11.5
The price of each CD before tax is 11.5
A^2+b^2=c^2
35^2+25^2=25^2
So the answer is 25
Write the function as
f(x) = x² + 6x - 4
Note that
x² + 6x = (x + 3)² - 9
Therefore
f(x) = (x 3)² - 9 - 4
= (x + 3)² - 13
The vertex is at (-3, -13)., and the curve opens upward.
The axis of symmetry is x = -3.
Answer:
The vertex of the function is (-3, 13).
The graph increases over the interval (-3, -∞)
B
-2 1/4 = -9/4
(-9/4)/(-2/3)