Step-by-step explanation:
Given bi-quadratic equation is:
Substituting given bi-quadratic equation reduces in the form of following quadratic equation:
Let us factorize the above quadratic equation:
Since square root of a negative number cannot be found, so:
2x+5= length
2x+5+2x+5+x+x=28
6x+10=28
6x=18
x=3
The width is 3 and the length is 11.
Answer: No. Quincy should have used the trend line to find the corresponding x value when y=80.
Answer:
Step-by-step explanation:
(0,2). y=mx+b or 2=-2 × 0+b, or solving for b: b=2-(-2)(0).
(2.5)^2 + (16.5)^2 = c^2
c = sqrt(2.5^2 + 16.5^2)
c = sqrt(278.5)
c = 16.69
Rounded up it would be 17, so the answer is D.