Assignment:
Q1) 47-(2x+5)< 3(x+2)+2 =
Q2) Can this equation be dependent or indepdent ?
Is the system consistent or inconsistent?
5x +9y=-27
-5x+9y=27
Q3) Write interval notation fo rthe set (x|-2 > x>-10)
Q4) x<2 & y>-2x +4
Q5) What is the solution of the system? The solution is?in an order pair
7x +4y=2 & 3x-4y=-22
Q6) x+y<4 graph the inequality on a plane
Q7) Write an interval notation for x<6 and x>-3
Q8)Two angles are complementary. The sum measure of the first angle and half the second angle is 83.5 Find the measures of the angles
- What is the measure of the smaller angle?
- What is the measure of the other angle?
Q9) Smokers Lumber can convert logs into eith lumber or plywood. In a given day, the mail turns out twice as many units of plywood as lumber. It makes a profit of $25 on a unit of lumber and $45 on a unit of plywood. How many of each units must be prodcued and sold in order to make a profit of $11845?
Q10) A cellphone company offers a contract for which the cost C, in dollars, of t minutes of telephoning is given by C=0.25 (t-400) + 53.95, where it is assumed that t>400 minutes. what times will keep costs betwen $99.95 and $131.20
For the cost to be between $99.45 and $131.20, the tlephoning time must be between __ minutes and ___minutes.
Provide complete and step by step solution for the question and show calculations and use formulas.