From the equilateral (60-60-60) triangle with all legs of length 1, we can view half the triangle, forming a 30-60-90 triangle, with the hypotenuse measuring 1, the short leg1/2<span>, and the long leg 3 2. Therefore, we have sin 30° = </span>1/2<span>, cos 30° = 3 2, sin 60° = 3 2 and cos 60° = </span>1/2<span>.
i hope this help</span>
Answer:
The height of First Copy is 20 cm.
Step-by-step explanation:
Given:
Original Height = 25 cm
First copy is reduce to 80% of Original height.
Therefore to find the height of first copy can be find out by multiplying 80 with original height and then dividing by 100.
∴ Height of First Copy = ![\frac{80}{100} \times \textrm{original height}= 0.8\times 25 cm = 20cm](https://tex.z-dn.net/?f=%5Cfrac%7B80%7D%7B100%7D%20%5Ctimes%20%5Ctextrm%7Boriginal%20height%7D%3D%200.8%5Ctimes%2025%20cm%20%3D%2020cm)
Hence Height of first copy is 20 cm
Now Another copy is reduce to 85% of First Copy.
Therefore to find the height of another copy can be find out by multiplying 85 with first copy height and then dividing by 100.
∴ Height of Another Copy = ![\frac{85}{100} \times \textrm{first copy height}= 0.85\times 20 cm = 17cm](https://tex.z-dn.net/?f=%5Cfrac%7B85%7D%7B100%7D%20%5Ctimes%20%5Ctextrm%7Bfirst%20copy%20height%7D%3D%200.85%5Ctimes%2020%20cm%20%3D%2017cm)
Hence Height of Another copy is 17 cm
Answer:
NOTE: Standard form is Ax+By=C
Distribute -1
5a -a +3b
Rewrite
5a +3b = -a
Multiply every term by -1 so -a will be positive
-5a -3b = a
Answer:
ummm yes
Step-by-step explanation: