Answer:
Step-by-step explanation:
The expression is r = 500 • 2, where “r” represents the rate.
6+4• (5-7)^2
(5-7)^2
-2^2
4
6+4+4
=14
Answer:
3 11/21
Step-by-step explanation:
2 2/3=(2*3+2)/3=<u>8/3</u>
8/3+6/7=56/21+18/21=74/21 or 3 11/21
Answer:
8) -8, -9
9) 4, 
Step-by-step explanation:
8) x² + 12x + 27
Solutions of a polynomial means the values of
such that the polynomial becomes zero.
.
We use the following formula to determine the solutions of a quadratic equation of the form: 

In this equation, 
Substituting in the formula, we have:


Taking 2 common outside we get:

Therefore, we get two solutions viz, x = -3, -9.
9) 2x² - 9x + 4 = y
X- intercepts of a polynomial means the value of x such that y = 0. It means the roots of the polynomial.
Solving the equation using the formula above, we get:


The values of x = 4,
.
Hence, the answer.