1) 
, 2) 
3) 
, 4) 
5) 
, 6) 
7) 
, 8) 
9) 
, 10) 
11) 12)
Step-by-step explanation:
We need to solve each equation.
1) 
Solving:
Adding like terms:
Divide both sides by 11
2) 
Solving:
Adding like terms:
Divide by -8
3) 
Solving:
Adding like terms:
Subtract 9 on both sides:
Divide both sides by 4
4) 
Solving:
Divide both side by -7
5) 
Solving:
12r-1=11
Adding 1 on both sides
Divide both sides by 12
6) 
Solving:
7) 
Solving
8) 
Solving:
9) 
Solving:
10) 
Solving:
11) 
Solving:
12) 
Solving:
Keywords: Solving Polynomials
Learn more about solving Polynomials at:
#learnwithBrainly
Answer:
B. 90 degrees
Step-by-step explanation:
The definition of supplementary is that they add up to 180 degrees. If the measure of angle A is 90 degrees, then angle B is 180-90 = 90 degrees.
Answer:
jk
Step-by-step explanation:lol
Original price = $20
Markup percentage = 65
Markup amount = 0
What is the profit?
65% of 20 = $12
Therefore Markup amount = $12
Profit = Original price + markup amount
= $20 + $12
= $32
Answer:
Step-by-step explanation:
1) if to re-write the given equation into slope-interception form, then:
the slope of the given line is 5/2;
2) according to the rule of perpendicular, the required slope should be:
s*(5/2)=-1;
3) if to solve this equation (s*5/2=-1), then s=-2/5 or -0.4.
