Answer:
Step-by-step explanation:
Plan 2: x= number of months
y= the cost per call
19x + 0.04y
19(4) + 0.04(20)
76 + 0.8
76.8
So the total will be $76.8
Answer:
-11,3
Step-by-step explanation: using foil (x-2)(X+10)=x^2+8x-20
x^2+8x-20-13=13-13 X^2+8x-33=0 factoring you get (x+11)(x-3)=0 so x+11=0
x-3=0
x=-11,3
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Answer:
t = 4.5
Step-by-step explanation:
1.8 = 0.4(t) solve for t
Answer:
bae of 44 yds and a height of 28 yds
Step-by-step explanation:
11x7 = 88 yd^2 = area of small triangle
616/88 = 16 so the larger triangle area is 16 times larger than the smaller triangle.
The area of a triangle is not proportional to it's dimensions. An increase of 16 times the area only increases the dimensions by 4 times.
larger triangle dimensions are 11 x 4 = 44 and 7 x 4 = 28
