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Katarina [22]
3 years ago
13

Simplify this algebraic expression completely 10y-3(y+5)

Mathematics
2 answers:
jeyben [28]3 years ago
6 0
Expand the given expression.
10y - 3(y + 5) = 10y - 3y - 15

Collect terms n y together.
10y - 3y - 15 = (10 - 3)*y - 15
                    = 7y -15 

Answer:  7y - 15
Sergeu [11.5K]3 years ago
4 0

Answer:

Step-by-step explanation:

7y-15

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Answer:

sin(2\alpha )=2(\frac{5}{12})(\frac{12}{13})=\frac{10}{13}\\cot(2\alpha ) = \frac{16511}{18720}

Step-by-step explanation:

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sin(2\alpha )=2(\frac{5}{12})(\frac{12}{13})=\frac{10}{13}\\cos(2\alpha )=cos^2(\alpha)-sin^2(\alpha)\\cos(2\alpha )=(\frac{12}{13})^2-(\frac{5}{12})^2=\frac{16511}{24336}\\cot(2\alpha)=\frac{cos(2\alpha)}{sin(2\alpha)}=\frac{\frac{16511}{24336}}{\frac{10}{13}}=\frac{16511}{18720}

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