Answer:
Equation 1: x-3y+5=0
Equation 2: 3x+y-1=0
Step-by-step explanation:
Equation 1: x+3y=-5
x+3y+5=-5+5
x=3y+5=0
Equation 2: 9x+3y-3=0
3x+y-1=0
I believe the answer to be "107"
Answer:
about 5.52%
Step-by-step explanation:
If Lucius wants an account value of $2000 after 3 years, she can find the interest rate by solving the polynomial ...
550x³ +600x² +650x -2000 = 0
This equation has one positive real root. It is irrational, so must be found using the rather complicated cubic solution formula or, more simply, a graphing calculator. The latter shows the root to be near 1.05516.
Lucius needs an interest rate of ...
(1.05516 -1)×100% = 5.516%
The interest rate needed for a balance of $2000 after 3 years is about 5.52%.
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Answer: The width is 10.2 inches, the perimeter is 71.4, the area is 260.1.
Step-by-step explanation: So first i divided 25.5/5 which equals 5.1. The ratio is 2:5 so I know that i have to multiply 5.1x2 which is 10.2, thats how you get the width. The perimeter I just did 25.5+25.5+10.2+10.2 =71.4. For the area I just multiplied 25.5x10.2=260.1.