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Maslowich
3 years ago
13

18, 19, and 20 please!

Mathematics
1 answer:
White raven [17]3 years ago
7 0
18 is 75! this is the answer to 18
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Simplify Sinx + cosx/ cos²x - sin²x​
bonufazy [111]

\dfrac{\sin x + \cos x}{\cos^2 x - \sin^2 x}\\ \\\\=\dfrac{\sin x + \cos x}{(\cos x + \sin x )\\\\(\cos x - \sin  x)}\\\\\\=\dfrac{1}{\cos x - \sin x}

3 0
1 year ago
Are the following proportional? Explain or show<br> your reasoning<br> 3/5 and 18/25
kykrilka [37]

Answer:

No, they are not proportional. 3/5 with equal out to 15/25 by using the method of Least Common Denominator!

Step-by-step explanation:

Hope this helps :)

7 0
2 years ago
Anyone need tutoring help in a subject? My rates are only $2-$3 a session!
vodomira [7]

Answer:

No, and this isn't the place to put an ad

Step-by-step explanation:

4 0
2 years ago
Help please!! Picture below.
saul85 [17]
X+ y <span>≥ </span>12
2.75x +3.50y < 35

Hope this helps
7 0
2 years ago
At the dog park, there are several dogs with their owners. Counting heads, there are 20; counting legs, there are 62. How many d
Nataly_w [17]
There are 9 owners and 11 dogs
9×2=18
11×4=44
44+18=62
6 0
3 years ago
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