Identify the factors of x^2 - 4x – 21. 1. (x - 7)(x + 3)

2. (x + 7)(x - 3)

3. (x + 21)(x - 1)

4. (x - 21)(x + 1)

1. (x - 7)(x + 3)

Step-by-step explanation:

x^2 - 4x – 21

We need two numbers that have a product of -21 and a sum of -4.

The numbers are -7 and 3 since -7 * 3 = -21, and -7 + 3 = -4

x^2 - 4x – 21 = (x - 7)(x + 3)

(x - 7)(x + 3)

answer: since the question is talking about growth you have to use the growth formula which is inital amount (1 + growth)^time

step-by-step explanation:

the intial amount is 1200, the growth is 4.8, and the time is 7. plug those numbers into the equation, also i think you have to change 4.8 into a percent. but, i have forgotton how to do that. if this is a online class go on to the lesson.

13

step-by-step explanation:

divide the cost of the total of sodas you bought by the cost of one soda, for example:

$24.57 divided by $1.89 is 13 which means you bought 13 sodas