Last one:
In the picture a=2, b=4a, b=4•2=8
1st picture a=3, b=4a, b=4•3=12
2nd picture a=0.5, b=4•0.5=2
3rd picture a=2.5, b=4•2.5=10
4th picture a=4, b=4•4=16, but in the picture b=10 therefore, this rectangular is NOT similar to rectangular ABCD.
M = 4
Because the base of log is 10
10,000 is 10*4, and we know that log 10,000 =4, so M=4
Interest Earned: $105
Balance of the account: $455
2x-12=-40
Add 12 to both sides
2x=-20
Divide by 2 to both sides
x=-10
Y= 11-2x
Substitute in:
5x-2(11-2x)=-13
5x-22+4x=-13(combine like-terms)
9x-22=-13
9x=-13+22
9x=9
x=1
