Answer:
B. -90
Step-by-step explanation:
a1=9; d=-3
a34=9-3(33-1)=-90
Answer:
A.
Step-by-step explanation:
The total amount Akash paid in those 3 months for his cell phone bill.
For
![x\ \textgreater \ 0](https://tex.z-dn.net/?f=x%5C%20%5Ctextgreater%20%5C%200)
,
![2^x\ \textless \ 3^x](https://tex.z-dn.net/?f=2%5Ex%5C%20%5Ctextless%20%5C%203%5Ex)
, all the more
![2^x\ \textless \ 3^x+1](https://tex.z-dn.net/?f=2%5Ex%5C%20%5Ctextless%20%5C%203%5Ex%2B1)
, therefore no solution.
For
![x=0](https://tex.z-dn.net/?f=x%3D0)
, we have
![2^0=3^0+1 \Rightarrow 1=1+1 \Rightarrow 1=2](https://tex.z-dn.net/?f=2%5E0%3D3%5E0%2B1%20%5CRightarrow%201%3D1%2B1%20%5CRightarrow%201%3D2)
. Obviously that' false.
For
![x\ \textless \ 0](https://tex.z-dn.net/?f=x%5C%20%5Ctextless%20%5C%200)
both
![2^x](https://tex.z-dn.net/?f=2%5Ex)
and
![3^x](https://tex.z-dn.net/?f=3%5Ex)
, where
![2^x\ \textgreater \ 3^x](https://tex.z-dn.net/?f=2%5Ex%5C%20%5Ctextgreater%20%5C%203%5Ex)
, belong to the range
![(0,1)](https://tex.z-dn.net/?f=%280%2C1%29)
, then
![3^x+1](https://tex.z-dn.net/?f=3%5Ex%2B1)
belong to the range
![(1,2)](https://tex.z-dn.net/?f=%281%2C2%29)
.
Those ranges don't have a common part, therefore, again, no solution.
So, the equation
![2^x=3^x+1](https://tex.z-dn.net/?f=2%5Ex%3D3%5Ex%2B1%20)
doesn't have a solution.
Answer: 1.9
Step-by-step explanation:
Question 11
9.88 rounds to 10
5.2 rounds to 5
10/5 = 2
Take 10% of the snowboard price.
10% = 0.1
109 * 0.1 = $10.90 (10% discount)
109 - 10.9 = $98.10 (Price with discount).
Take 12% of the new snowboard price.
12% = 0.12
98.1 * 0.12 = 11.772 (Round to 11.77)
98.10 - 11.77 = $86.33 (Final discounted price)
Take 6% tax on the new snowboard price.
6% = 0.06
86.33 * 0.06 = 5.1798 (Round to 5.18)
86.33 + 5.18 = $91.51
______
After solving Hannah doesn't have enough money to buy the snowboard.
______
Best Regards,
Wolfyy :)