2 years ago

Which of the following statements is true?

Mathematics

1 answer:

olchik [2.2K]2 years ago

5 0

Answer:

Step-by-step explanation:

sin 55° = cos 25°

because they complete each other to 90°

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Biking at 10 mph, it takes Kristen hour to reach the train station to go to work. Kristen then takes the train to work, and it t

vivado [14]

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2 years ago

6x2y − 3xy − 24xy2 + 12y2

GalinKa [24]

Answer:

$=-39xy+24y$

Step-by-step explanation:

$\mathrm{Multiply\:the\:numbers:}\:6\cdot \:2=12$

$=12xy-3xy-24\cdot \:2xy+12\cdot \:2y\\\mathrm{Multiply\:the\:numbers:}\:24\cdot \:2=48\\=12xy-3xy-48xy+12\cdot \:2y\\\mathrm{Multiply\:the\:numbers:}\:12\cdot \:2=24\\=12xy-3xy-48xy+24y\\\mathrm{Add\:similar\:elements:}\:12xy-3xy-48xy=-39xy\\=-39xy+24y$