7/9 + 5/12 with lcm pls help and give explanation pls
2 answers:
Step-by-step explanation:
1. ) 7/9 multiply x 4 and 5/12 multiply x 3 , to get the same denominator( bottom number)
2.) once you multiply 7/9 by 4 you should get 28/36 and once you multiply 5/12 by 3 you should get 15/36
3.) Now add the numerator( top numbers) so add 15 and 28 = 43
4.) Next put 43 as the numerator(top number) and 36 as the denominator (bottom number) = 43/36
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Answer:
<u>The correct answer is the letter C. </u>
Step-by-step explanation:
We can use the following trigonometric identity:
(1)
(2)
Solving each equation by b and equaling we have:
Let's recall that:
Then we have:
Using equation (1) we can find b.
Finally, we can find a using the next equation:
<u>Therefore, the correct answer is the letter C. </u>
I hope it helps you!