Answer:
Summary Many simple inequalities can be solved by adding, subtracting, multiplying or dividing both sides until you are left with the variable on its own. But these things will change direction of the inequality: Multiplying or dividing both sides by a negative number. Swapping left and right hand sides
Step-by-step explanation:
Use the identity P(A ∪ B) = P(A)+P(B)-P(A ∩ B)
P(A)=0.50
P(B)=0.60
P(A ∪ B) = 0.30
=>
P(A ∪ B) = P(A)+P(B)-P(A ∩ B)
=(0.50+0.60)-0.30
=0.80
Answer:
11
Step-by-step explanation:
The average price of the 20 shirts is 600/20 = $30 each. So, we know that we can sell 20 shirts for $30 each to reach the goal.
For each $25 shirt we sell, we must also sell a $35 shirt to make the average price of the sale be $30 per shirt. That is any or all of the 10 pairs of $30 shirts can be replaced by a ($25, $35) pair. So, there are 10 additional ways to reach the goal.
The total number of possible combinations of shirt sales is 1 +10 = 11.
Slope -intercept form : y=mx+b
In other words use this formula y-y1=m(x-x1) where x1and y1 are points from the graph.
To find the slope : m=(y2-y1)/( x2-x1)
Use it for each graph and solve .
Answer:
y = 0
Step-by-step explanation:
Substitute x into the equation, then solve for y:
y + 4 = 2(3 - 1)
y + 4 = 2(2)
y + 4 = 4
y = 0
