PLZ HURRY IT'S URGENT!!

Mathematics

2 answers:

Dahasolnce [82]3 years ago

5 0

Answer:

1/2.

Step-by-step explanation:

10m = 5n

m = 5n/10

m = n/2

m/n = n/2 * 1/n

m/n = 1/2.

ra1l [238]3 years ago

4 0

Answer:1/2

Step-by-step explanation:

10m=5n

Divide both sides by 5n

10m/5n=5n/5n

2m/n=1

Therefore m/n=1/2

You might be interested in

Any sample from a group of people will be representative of the entire group.<br><br> true<br> false

Inessa [10]

The answer would be false

4 0

2 years ago

ASAP! GIVING BRAINLIEST! Please read the question THEN answer CORRECTLY! NO guessing. Show your work OR give an explaination.

netineya [11]

Answer:

Its B

Step-by-step explanation:

7 0

2 years ago

Find sin 2a and cot 2a:

geniusboy [140]

Answer:

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

Step-by-step explanation:

$\text{if } cos(\alpha)=\frac{12}{13}\\\text{That must mean we have a triangle with base 12, and hypotenuse 13.}\\\text{Using Pythagoras, we can determine the base of the triangle must be 5.}\\a^2+b^2=c^2 \text{, where c is the hypotenuse and a, b are the two other sides.}\\c^2-b^2=a^2\\\sqrt{c^2-b^2}=a\\\sqrt{13^2-12^2}=\sqrt{169-144}=\sqrt{25}=5\\\text{Therefore, }sin(\alpha) = \frac{5}{12}\\sin(2\alpha)=2sin(\alpha )cos(\alpha)\\\text{(From double angle formulae identities)}\\$

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