Answer:
The two values of x are -2.5 and -3
Step-by-step explanation:
we have
The formula to solve a quadratic equation of the form 
is equal to
in this problem we have
substitute in the formula
therefore
The two values of x are -2.5 and -3
30) 19,300
31) 1 x 10 (exponent 14)
32) 152,640,000
33) 100,000
34) 25,000
Answer:
A. The function is linear and is growing by equal differences over equal intervals.
Let W and L be width and length of the rectangular pen respectively.
Therefore,
Circumference, C = 2W+2L= 130 yd
Area, A = LW = 1050 yd^2=> L = 1050/W
Using the circumference expression and substituting for L;
130 = 2W + 2(1050/W) = 2W+2100/W
130*W = 2W*W + 2100
130W = 2W^2 +2100
2W^2-130W+2100 = 0
Solving for W;
W= [-(-130)+/- Sqrt ((-130)^2-4(2)(2100)]/2*2 = 32.5+/- 2.5
W = 30 or 35 yd
When W = 30, L = 1050/30 = 35
When W = 35, L = 1050/35 = 30
Therefore, W = 30 yd and L = 35 yd.
