Arianna is saving money for college so she invests $1,000 into a savings account that earns interest every year. if the amount in the savings account is represented by the function
9x2+50x+1000, where x is the number of years. how much money does arianna have in her account after 6 years?

$1,624

Step-by-step explanation:

The amount after x-years is given as :

9 + 50x + 1000

Since x represents number of years , this means that after 6 years , the amount will be :

9( ) + 50(6) + 1000

⇒9(36) + 300 + 1000

⇒324 + 300 + 1000 =

Therefore, the amount after 6 years will be $1,624

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.