Answer:
2y +10 +3y-4
5y+6
Step-by-step explanation:
Answer:
66 can be made
1m left
Step-by-step explanation:

Ribbons that can be made= 66

length used= 99m
length remaining= 100m- 99m= 1m
<u>Answer:</u>
The average daily balance for the month of June is 55.16
Solution:
Given, June 1st = 1223 starting balance
June 10th = 615 deposit
So these will add in the account
June 15th = withdrawal of -63
June 22nd = withdrawal of -120
These will be subtracted from the account.
We have to add the deposits and subtract the withdrawals from the starting balance to obtain the total amount.
So, the total amount deposited in June is (1223 +615-63-120) = 1655
The total days in June is 30. In 30 days, the total deposit is 1655. To calculate the average balance, we have to divide the total amount by the total number of days in the month.
So, in 1 day the deposit is 
Hence, the average daily balance for June is = 55.16
Given:
The trigonometric expressions are given as,

Explanation:
a)
The given expression can be rewritten as,

Since, from the trigonometric ratios,

On plugging the obtained ratios in equation (1),

Substitute the trigonometric values in the above equation.

Hence, the exact value of the expression is 1/2.
b)
The given expression can be rewritten as,

Since, from the trigonometric ratios,

On plugging the obtained ratios in equation (2),

Substitute the trigonometric values in the above equation.
![\begin{gathered} =-\sqrt[]{3}+\frac{1}{\sqrt[]{2}}(-\sqrt[]{2}) \\ =-\sqrt[]{3}-1 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%3D-%5Csqrt%5B%5D%7B3%7D%2B%5Cfrac%7B1%7D%7B%5Csqrt%5B%5D%7B2%7D%7D%28-%5Csqrt%5B%5D%7B2%7D%29%20%5C%5C%20%3D-%5Csqrt%5B%5D%7B3%7D-1%20%5Cend%7Bgathered%7D)
Hence, the exact value of the expression is -√3-1.