Answer:
See explanation
Step-by-step explanation:
1 = b (0,-2)
2 = b (0,1)
6 = a (3,0)
7 = a (-2,2)
Answer: yes y=2x-3, y=x+2 : y=7, x=5
According to law of cosines the length of RQ can be written as
.
Given the length PR is 6 , the length of RQ is p, the length of PQ is 8 and the angle RPQ is 39 degrees.
A length of the triangle can be written as according to law of cosines if sides are given and one angle is 
We have to just put the values in the above equation.
as
.
p is the side opposite to angle given , the length of other sides are 6 and 8 and angle is 39 degrees.
Hence the side can be written as according to law of cosines if the angle is 39 degrees is as
.
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Answer:
Graphically. As shown below, the roots of a polynomial are the values of x that make the polynomial zero, so they are where the graph crosses the x-axis, since this is where the y value (the result of the polynomial) is zero. The roots are the two green dots.
Step-by-step explanation:
You are dividing a number (x) by three and then subtracting 1 like this. (x/3)-1