If you would like to know which expression represents the amount of time Joe exercises, you can calculate this using the following steps:
Keith ... x hours a week
Troy ... three hours less than Keith: x - 3
Joe ... two times more than Troy: 2 * (x - 3)
The correct result would be D) 2 * (x - 3).
Answer:
C
Step-by-step explanation:
I think I will answer the question the your attachment because it has full information.
The function is: y = 3*
a. The function decreases
Wrong, because the base number is 2 and it is greater than 0. The function will go up
b. y=intercept of (0.2)
Wrong, Let substitute x =2 into the function: y = 3*
= 12
c. if x increase by 1, the value of y will double
Because the base number is 2. For example:
- If x = 2, y = 3*
= 12
- If x =3, y =3*
=(3*
*)2 = 24
d. contains the point (2,4)
Wrong, Let substitute x =4 into the function: y = 3*
= 48
So we choose C
Answer: ![\approx8*10^{-3}](https://tex.z-dn.net/?f=%5Capprox8%2A10%5E%7B-3%7D)
Step-by-step explanation:
In order to round to the nearest thousandth, you must observe the digit to the right of the digit in the thousandth place and then:
- If it is less than 5, you must round down.
- If it is greater than or equal than 5, you must round up.
In this case, given the number:
![0.00792398](https://tex.z-dn.net/?f=0.00792398)
You can notice that the digit to the right of the digit in the thousandth place is 9.
Since
, you must round up. Then:
![0.00792398\approx0.008](https://tex.z-dn.net/?f=0.00792398%5Capprox0.008)
Finally, to express this as a single-digit times a power of ten, move the decimal point three places to the right. Then you get:
![\approx8*10^{-3}](https://tex.z-dn.net/?f=%5Capprox8%2A10%5E%7B-3%7D)
Answer:
Step-by-step explanation: