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umka2103 [35]
3 years ago
11

7a+(8b) +(-15a)+9b + (-4c)+8=

Mathematics
2 answers:
Alexeev081 [22]3 years ago
8 0
-8a+17b-4c+8

steps:
when there is a "+" in front of the parenthesis the expression remains the same.

7a+8b-15a+9b-4c+8

Collect the like terms

7a+8b-15a+9b-4c+8

7a and 15a
8b and 9b

15a-7a= -8a
9b+8b= 17b

Final answer:

-8a+17b-4c+8
Arte-miy333 [17]3 years ago
6 0

7a+(8b) +(-15a)+9b + (-4c)+8

7a+8b-15a+9b-4c+8 ( changing some of the symbols)

7a-15a+8b+9b-4c+8

=-8a+17b-4c+8

Answer: -8a+17b-4c+8

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Answer:

ΔABC ~ ΔDEC

Step-by-step explanation:

Given : DE║AB

              Statements                              Reasons

1). DE║AB                                              1). Given

2). ∠CDE ≅ ∠CAB                                2). Corresponding angles

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3). ∠CED ≅ ∠CBA                                3). Corresponding angles

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Hence ΔABC is similar to ΔDEC.

6 0
3 years ago
Use the figures above how many of each shape can be found when decomposed to find the area?
MrMuchimi
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3 years ago
Fill in the blanks thanks
Mademuasel [1]

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Um threre is no blanks or there is no question.

Step-by-step explanation:

5 0
2 years ago
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Answer: The area of the triangle is 24 square inches

Step-by-step explanation:

Hi, since the 2 triangles form a parallelogram ( see attachment) we have the base and height of the triangles, we have to apply the next formula:

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Replacing with the values:  

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The area of the triangle is 24 inches

Feel free to ask for more if needed or if you did not understand something.

4 0
3 years ago
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