<span>A. cos(x) = cos(-x) [correct, since cos(x) is an even function]
B. Since the cosine function is even, reflection over the x-axis [y-axis] does not change the graph. [false]
C. cos(x) = -cos(x) [ false]
D. The cosine function is odd [even], so it is symmetrical across the origin. [false]</span>
Answer:
$8 for each tickets
Step-by-step explanation: 60/5 equals 12
Each friends have $12
12-4=8
Each ticked cost 8 dollars.
$125 is a "must budget" so it will be the constant in the inequality
The fountain is $30 per hour. If they spend x hours, then their budget for fountain will be
fountain = 30x
The inequality
Their budget is maximum $250, that means they are able to spend less than or equal to $250
constant + fountain ≤ 250
125 + 30x ≤ 250
<em>This is the inequality expression</em>
Answer:
30 dollars
Step-by-step explanation:
4(5) + 10 = 20 + 10 = 30
Answer: 2 calls
Step-by-step explanation:
4 mins/2 minutes per call
