Step-by-step explanation:
y=x+6.......(1)
y=-3X-6....(2)
from eq (1), we get,
x=y-6....(3)
sub eq (3) in eq (2), we get
y= -3(y-6)-6
y= -3y+18-6
y+3y-12=0
4y=12
y=3
sub value of y in eq (3)
x=3-6
x=-3
A rectangular farm has an area of 1/2 square miles. If its length is 1/3 miles, what is its width?
1 answer:
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Answer:
D. 4
Step-by-step explanation:
Without actually solving the equation, recall that for , there are two cases:
In the given equation , there are two pairs of absolute value symbols.
Since each has two cases, there must be a total of different equations created.
All four cases are:
Exponents differ, hence clearly there are four possible solutions to this equation.
You can solve for all four values of by taking the log of both sides and using a bit of algebra to verify you have four solutions.