Answer:
2.
3. -0.28
4. a.
b.
Step-by-step explanation:
2. Given that
⇒ or
Since x belongs to [0,2π).
Therefore, (Answer)
3. Given that,
⇒ Degrees
{Since is in first quadrant}
So, (Answer)
4. a. Given
b. (Answer)
That is an expression of the inequality:
x>5
The 5 isn't shaded and the line goes right, indicating the variable is greater than 5 but not "greater than or equal to"
Extra Clarification:
When the variable is greater than or equal to a number the circle will be shaded in and the arrow will point right. This is the same for less than or equal to; the circle would be shaded in and the arrow would be going left (since this is LESS than).
When a variable is less than a number the circle will not be shaded and the arrow will pint left.
The statement on the bottom left is correct. (6 students studied for 20 to 24 hours)
Considering he has paid for his membership on that very same week, his total bill for that meal includes his membership, the flat fee, the cab ride, and the tip. These values are listed below:
Club membership = $40
Dinner = $20
Cab ride = $1(m - 0.5) + $1.75 ; where m = number of miles
Tip = $5
Total bill = 40 + 20 + 1(m - 0.5) + 1.75 + 5
Total bill = 40 + 20 + 1(5.5 - 0.5<span>) + 1.75 + 5
</span>Total bill = 40 + 20 + 1(5<span>) + 1.75 + 5
</span>Total bill = 60 + 5 + 6.75
Total bill = $71.75