Answer:
round up
Step-by-step explanation:
You can use the percentage such as 20% off, make it 0.20 times the discounted price. Then add that into the discounted price.
Replace f(x) with 0. Then solve for x
f(x) = x^2 + 5x - 14
0 = x^2 + 5x - 14
x^2 + 5x - 14 = 0
(x+7)(x-2) = 0 ... factor (think of two numbers that multiply to -14 and add to 5)
x+7 = 0 or x-2 = 0
x = -7 or x = 2
The two zeros, roots, or x intercepts are x = -7 or x = 2
Answer: Choice C) {2, -7}
Let A be the amount needed
let P be the invested amount=$1600
let R be the interest rate =6.5%
let n be the rate/time=6 years
A=P[1+(R÷100)]^n
A=1600[1+(6.5÷100)]^6
A=1600[1+0.065]^6
A=1600[1.065]^6
A=1600×1.4591
A=2334.56
A=$2330
