Mathematics, 04.02.2021 19:30 anisagreen10
Serena wants to wrap ribbon around the edge of the picture frame represented in the drawing.
Which is the simplified form of the expression representing the length of ribbon Serena will need?
A. 9x β 13.2
B. 4.5x β 6.6
C. 9x β 14.8
D. 2(3.5x β 7) + 2(x + 0.4)
To convert Celsius temperatures to Fahrenheit, you can use the expression (C + 32). Tom says that another way to write this expression is C + 32.
What error did Tom make?
A. Tom did not make an error.
B. Tom should have simplified the fraction .
C. Tom did not distribute to both terms in parentheses.
D. Tom should have added inside the parentheses before multiplying.
Which expression is equivalent to 15x β 2(3x + 6)?
A. 3(3x + 4)
B. 3(3x β 4)
C. 9x + 12
D. 10x β 12
Marina simplified the expression 4x + 5(β4x β b) β (x β 2) to be β17x β 8.
What was the value of b?
A. β6
B. β2
C. 2
D. 10
Which is equivalent to (3x + 4) β (4x β 2)?
A. 7x β 2
B. -x + 6
C. -x β 2
D. 7x + 6
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Serena wants to wrap ribbon around the edge of the picture frame represented in the drawing.
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