The sum of the given expression is 6b^2+8b-15
<h3>Sum of expression</h3>
Given the following expression
(6b^2+5)+(8b-20)
We are to take the sum. On expansion;
6b^2+5 + 8b-20
Collect the like terms
6b^2+8b +5 - 20
6b^2+8b-15
Hence the sum of the given expression is 6b^2+8b-15
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Answer:
48 square units
Step-by-step explanation:
Area = length x width
= 8 x 6
= 48
Answer:
100
Step-by-step explanation:
I believe it is this answer bur don't hold me to. If it is wrong I'm sorry in advance
4 + 2(3x - 7) + 5x
Distribute
4 + 6x -14 + 5x
Combine like terms
-10 +11x or 11x - 10
Third option
It is 19.21. You find the area of each of the sides. Remember that the area of a triangle is half of that of a square. The area of the square base is 2.89. The area of the triangle sides equals 16.32. Add that up and you get 19.21.