Answer:
4x^2-9
Step-by-step explanation:
i just took the quiz
The correct answer is x>-2. The graph is attached.
To solve this:
-x/2 + 3/2 < 5/2
Subtract 3/2 from both sides:
-x/2 + 3/2 - 3/2 < 5/2 - 3/2
-x/2 < 2/2
-x/2 < 1
Multiply both sides by 2:
(-x/2)*2 < 1*2
-x < 2
Divide both sides by -1:
-x/-1 < 2/-1
Remember to flip the the symbol since you divide both sides by a negative:
x > -2
To graph the inequality, we draw a number line, making sure we have -2 on it. We circle -2 and leave it open, since it is strictly greater than. Then we shade the line to the left.
Answer:
16 calls
Step-by-step explanation:
make an equation based off this ratio -- 36 calls: 2.25 hours and x calls: 1 hour
36/2.25 = x/1
cross multiply to get 36=2.25x
divided by 2.25 on both sides
x=16
Answer:

Step-by-step explanation:
GIVEN: Suppose that the weight (in pounds) of an airplane is a linear function of the amount of fuel (in gallons) in its tank. When carrying
gallons of fuel, the airplane weighs
pounds. When carrying
gallons of fuel, it weighs
pounds.
TO FIND: How much does the airplane weigh if it is carrying
gallons of fuel.
SOLUTION:
Let the fuel be represented along
and weight of plane along 
two coordinates are 
now, equation of linear function is

putting values we get


Now when fuel is 


Airplane weighs 