Answer:
•Twice the difference of eight and a number= 2(8-n)
•Eight more than the product of seven and a number decreased by two= 8 +7n-2
•Five times the sum of a number and seven= 5(n+7)
•Five less than the quotient of eight and a number increased by seven= 8/n - 5+7
Step-by-step explanation:
Edg 2021
Answer: 1/4
Step-by-step explanation:
Reword the problem. It says what is the probability of landing on 2 or 1. That is 2 possibilities out of 8 so 2/8 = 1/4
Answer:
1.
(a) The Domain is the set of inputs of the function.
Considering that the function takes a period of 3 weeks (21 days), the domain is [0, 21], once we can't evaluate what happens after the 21st day.
![\text{Domain is } [0, 21]](https://tex.z-dn.net/?f=%5Ctext%7BDomain%20is%20%7D%20%5B0%2C%2021%5D)
Otherwise, it could be ![[0, \infty)](https://tex.z-dn.net/?f=%5B0%2C%20%5Cinfty%29)
Note: We include 0 and 21.
Once the greatest balance was $400, it will not exceed $400, either it doesn't show negative values.
Note: We include 0 and 400.
(b)
Once the greatest balance was $400, when x=0, it seems that the y-value is half of $400, therefore, approximately $200. It also represents the initial value, the amount of money when she opened the account.
(c)
![f(x)=B(d)](https://tex.z-dn.net/?f=f%28x%29%3DB%28d%29)
![B(12)=0](https://tex.z-dn.net/?f=B%2812%29%3D0)
(d)
It is in segment 4.
The balance equal to zero means that the y-value of the graph is zero, therefore in the x-axis.
Answer:
Step-by-step explanation:
A standard deck of playing cards consists of 52 cards. All cards are divided into 4 suits. There are two black suits — spades (♠) and clubs (♣) and two red suits — hearts (♥) and diamonds (♦). In each suit there are 13 cards including a 2, 3, 4, 5, 6, 7, 8, 9, 10, a jack, a queen, a king and an ace.