the cost of admission to a history museum is 3.25 per person over age 3 kids 3 and under get in for free if the total cost of ad
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
For this exercise you need to remember:
1) The mulitplication of signs:
2) By definition, like terms contain the same variables with the same exponent.
Then knowing this, and given the equations:
and
You must subtract the like terms, which means that you must subtract the numerical coefficients of each term.
Then, you get the result is:
Answer:
1. 100 1. 150 1. 1
2.45 2. 800
Step-by-step explanation:
1. 25% * 400 = 0.25 * 400 = * 400 = 100
2. 50% * 90 = 45
1. 75% * 200 = 0.75 * 200 = 3/4 * 200 = 150
2. 10% * 8000 = 0.1 * 8000 = 800
1. 5% * 20 = 0.05 * 20 = 1
The fact that the coefficients are pairwise identical (except for sign) tells you that x^2 -1 is a factor (and x-5 is the other factor). Of course, you recognize x^2-1 as a special form (the difference of squares) that is factored as (x +1)(x -1).
The zeros are x = -1, +1, +5.
___
A graphing calculator confirms this.
The zeros are x = -1, +1, +5.
___
A graphing calculator confirms this.