This is the concept of algebra. The value of x three times less than the value of 45-10x will be as follows;
The value of x three times is:
3x
subtracting 45-10x we get:
3x-(45-10x)
3x+10x-45
13x-45
the answer is:
13x-45
8x -5+2 x
8x+2x-5 ( combine like terms)
answer:
10x-5 or -5+10x
The answer for c would be 805
Answer:
1. Why does the graph not start at zero?
It doesn't start at zero because all ovens start at 350°(probably less, but normally 350°) and not zero degrees.
2. What does it mean when the graph flattens out?
When the graph flattens out, it means that the temperature doesn't increase nor decrease, but instead it remains the same.
C can be found using pythagoras theorem. c2=a2+b2. Now, b is not given, but we know that cos(theta)=b/c=>b=c*cos(theta). Substituting b in the above relation, c2=a2+c2(cos(theta))^2=>c2=a2/(1-cos((theta))^2). c is the squareroot of c2. Hence c=sqrt(2/(1-cos((theta))^2))
