The rotation rule would be (-y, x)
Write/mark all your coordinates down. Now plot all your prime points and draw a line connecting them.
Hope this helps!~
Answer: 45
Step-by-step explanation:
![RS=ST\\\\7x-4=5x+10\\\\2x-4=10\\\\2x=14\\\\x=7\\\\\implies ST=5(7)+10=45](https://tex.z-dn.net/?f=RS%3DST%5C%5C%5C%5C7x-4%3D5x%2B10%5C%5C%5C%5C2x-4%3D10%5C%5C%5C%5C2x%3D14%5C%5C%5C%5Cx%3D7%5C%5C%5C%5C%5Cimplies%20ST%3D5%287%29%2B10%3D45)
Answer:
Hi, there the answer is E because it is a function
and also the x does not repeat itself.
Step-by-step explanation:
Also, if it is not a function x will repeat and equivalent to not a function
Answer:
![x = 5 \\ x = - 3](https://tex.z-dn.net/?f=x%20%3D%205%20%5C%5C%20x%20%3D%20%20-%203)
Step-by-step explanation:
![{x}^{2} - 2x = 15 \\ {x}^{2} - 2x - 15 = 0 \\ {x}^{2} + 3x - 5x - 15 = 0 \\ x(x + 3) - 5(x + 3) = 0 \\ (x - 5)(x + 3) = 0 \\ x - 5 = 0 \: \: \: \: \: or \: \: \: \: x + 3 = 0 \\ x = 5 \: \: \: \: or \: \: \: \: \: \: x = - 3](https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20-%202x%20%3D%2015%20%5C%5C%20%20%7Bx%7D%5E%7B2%7D%20%20-%202x%20-%2015%20%3D%200%20%5C%5C%20%20%7Bx%7D%5E%7B2%7D%20%20%20%2B%203x%20-%205x%20-%2015%20%3D%200%20%5C%5C%20x%28x%20%2B%203%29%20-%205%28x%20%2B%203%29%20%3D%200%20%5C%5C%20%28x%20-%205%29%28x%20%2B%203%29%20%3D%200%20%5C%5C%20x%20-%205%20%3D%200%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20or%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20x%20%2B%203%20%3D%200%20%5C%5C%20x%20%3D%205%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20or%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20%20%5C%3A%20x%20%3D%20%20-%203)
Discounted by 25% means he paid 75% of the original price:
80 x 0.75 = $60
Now multiply the sale price by 1 + tax rate:
60 x 1.05 = 63
He paid $63 total.