Answer:
Step-by-step explanation:
1st on is one solution
2nd one is no solution (the lines have the same slope but different y- intercepts
3rd is infinitely many solutions (the equations are the same)
A: a horizontal shrink would be caused by cos 3x.
B: a vertical stretch would be caused by 3 cos x
C: a horizontal stretch would be caused by cos (1/3)x
D: a vertical shrink would be caused by 1/3 cos x.
Let's see:
you do:
20 dollars x 10 = 200 dollars
but 300 dollars - 200 dollars are exactly 100 dollars,
so if you want MORE than 100 dollars, then you do:
20 dollars x 9 = 180 dollars..
300 dollars - 180 dollars = 120 dollars
so your answer is:
she can buy 9 shirts
