How to simplify 7 - 9x -15 + 12x into an expression
2 answers:
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Answer:
18
Step-by-step explanation:
I think the attached phôt below is your full question.
<u>And here is my answer: </u>
Surface area of a triangular prism = hight * area of the base
Here we have:
- h= 12
- Area of the base = 1/2 *2* 1.5 = 1.5
=> Surface area = 12*1.5 = 18
or addition is the mathematical operation of composition that consists of combining or adding two or more numbers to obtain a final or total quantity. The addition also illustrates the process of joining two collections of objects in order to obtain a single collection
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