Answer:
Step-by-step explanation:
Midpoint of line segment is calculated as
-----------(1)
Here
Substituting values in equation (1)
Answer:
answer is attached on the photo
The average of the given base lengths is the length of the midsegment:
... (72 + 104)/2 = 176/2 = 88
I'm pretty sure $39.31 was the original sales cost because if you use proportions to find out what is 7.2% of 42.35 ( what you get you you subtract 45 by 2.65). Your equation would be x/42.35 = 7.2/100. 42.35 is the whole because tax is adding money onto your original cost, making that the part. When you cross multiply you get 100x = 304.92. Then you divide by 100 on both sides to isolate the variable, to get x = 3.04. But you don't stop there. Since 3.04 is only the 7.2%, you have to subtract that by 42. 35 to get a sum of 39. 31 as your total.
A = lw + lw
A = (2)(11) + (2)(3)
A = 22 + 6
A = 28 yd²
