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Sphinxa [80]
3 years ago
8

Simplify: 4xy + 3x2y - 5xy - 8xy

Mathematics
2 answers:
lutik1710 [3]3 years ago
3 0
-3xy 
Im pretty sure this is right.
melisa1 [442]3 years ago
3 0
<span>4xy + 3x2y - 5xy - 8xy collect the like terms
4xy-5xy-8xy+3x2y
4xy-13xy+3x2y
-9xy+3x2y</span>
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Step-by-step explanation:

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MA_775_DIABLO [31]
Question 1

cos(C) = adj/hyp
cos(C) = BC/AC
cos(C) = 15/17

Answer: Choice C) 15/17

=============================================

Question 2

sin(E) = opp/hyp
sin(E) = FD/DE
sin(E) = 24/25

So angle E is the answer

=============================================

Question 3

AC is the adjacent side to the given angle A = 33 degrees
AB = 14 is the hypotenuse

cos(angle) = adjacent/hypotenuse
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x = 11.7

Answer: 11.7

=============================================

Question 4

x = length of board

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x = 10.46068
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Answer: 10.5

=============================================

Question 5

112 is the adjacent side to the given angle 62 degrees
x = height of building, which is the opposite leg

tan(angle) = opp/adj
tan(62) = x/112
112*tan(62) = x
x = 112*tan(62)
x = 210.641364
x = 210.6

Answer: 210.6
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