What is 5(a-5b)(a+b)
1 answer:
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Answer:
73
Step-by-step explanation:
Put the values of the variables where the variables are, then do the arithmetic.
(2·5)^2 -3·3^2 = 10^2 -3·9 = 100 -27 = 73
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Or, you can let a calculator or spreadsheet evaluate the function for you.
Answer:
<h2>Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about</h3>- area of triangles
- area of rectangle
- PEMDAS
- rectangle opposite sides are equal
- area of rectangle:l×w
- area of triangle:½×h×b
the area of the rectangle is
4×7 in²
28 in²
the area of above triangle is
½×6×7 in²
3×7 in²
21 in²
the area of left side triangle is
½×5×4 in²
2×5 in²
10 in²
therefore,
the area of the polygon is
28+21+10 in²
<h3>59 in²</h3>