512,724
- 96,473
__________
416,251
Answer:
90.75 cm^2
Step-by-step explanation:
The area of a trapezoid is given by
A = 1/2 ( b1+b2) *h
where b1 and b2 are the lengths of the bases and h is the height
A = 1/2(8.5+ 15.7) * 7.5
1/2 (24.2) 7.5
90.75 cm^2
None because the triangles have different lines
Answer is -3/4
Start with putting parentheses on the given numbers for these variables
Remove parentheses(When there is a in front of an expression in parentheses, the expression remains the same)
Reduce the numbers with the greatest common factor(3)
Calculate the difference 1 -7/4
Alternative form: -0.75
