Answer:
5x^2-2x-3
Step-by-step explanation:
Okay so for number 3, you have to do the top work first.
3: POSITIVE 2!! first, you do the stuff inside the parentheses first because of P(parentheses)EMDAS. so, 14-2-10! -2-10 is -12 and then plus positive 14 is +2. but, the negative sign outside of the parentheses makes that +2 a -2.
but, you cant forget the -12 outside. you have to do -12-2 which gets you -14. then, this is easy! -14 divided by -7 is a positive 2!
5: POSITIVE 3!! again, do the stuff in the parentheses first!! -2-4 is -6. then, -6 x 2 is -12! so, divide -12 by -4 and you get a positive 3!
It is Figures A,B, and C. Answer D is not a polygon.
Multiply the bill by 20% to find the amount of the tip then add them together:
32.50 x 0.20 = 6.50
Tip = $6.50
Total bill = 32.50 + 6.50 = $39.00
Roots of the polynomial are values of x when f(x)=0,so
to find the roots of the polynomial we need to solve the equation
x²+9x-70=0 , a=1, b=9,c=-70
![x= \frac{-b+/- \sqrt{ b^{2}-4ac } }{2a} ](https://tex.z-dn.net/?f=x%3D%20%5Cfrac%7B-b%2B%2F-%20%5Csqrt%7B%20b%5E%7B2%7D-4ac%20%7D%20%7D%7B2a%7D%0A%0A%0A)