Answer:
x=30o+n90on∈Z
Step-by-step explanation:
cos2x=sin(90o−2x)=sin(2x−30o)
Which mean 90o−2x=2x−30o+n360o
or 90o−2x+2x−30o=(2n+1)180o
The later cannot be true.
so x=30o+n90on∈Z
A)
s = sweater
j = jeans
Equations:
4s + 2j = 140
2s + 3j = 150
B)
4s + 2j = 140
2s + 3j = 150
Multiply (-2) to the second equation
-2 (2s + 3j = 150)
-4s - 6j = -300
Now you have the equations:
4s + 2j = 140
-4s - 6j = -300
-----------------------------add
-4j = -160
j = 40
4s + 2(40) = 140
4s + 80 = 140
4s = 60
s = 15
The cost for a sweater is $15 and the cost for a jean is $40
We used the elimination method to solve the system of equations.
C)
Each pair of jean, she will buy 3 sweaters so total = 40 + 3(15) = $85
Total cost for 1 pair of jeans and 3 sweaters = $85
If she has $225 the
$225 / $85 = 2.64
2 jeans = 2 x 40 = $80
6 sweaters = 6 x $15 = $90
So She can only buy 2 jeans and 6 sweaters
Answer:
$1326
Step-by-step explanation:
Follow the format of the reconciliation statement
The adjusted cash balances should match
Cash balance as per the bank statement, January 31 1421.95
Add: Deposit in transit 100.05
Deduct: Outstanding checks <u>(196)</u>
Adjusted cash balance <u>1326</u>
Balance as per depositor's record, January 31 1202.5
Subtract: NSF check (18)
Subtract: Service charges (8.5)
Add: receivable collected <u>150</u>
Adjusted cash balance <u>1326</u>
The reconciled amount is $1326.
!!
Answer:
The answer is 687
Step-by-step explanation:
You need to add them all up and then divide by the number of rates which is 5
1.700+650+680+710+695=3435
2.3435/5=687
Hope this was helpful
Answer:
11.7 units
Step-by-step explanation:
sq root(2--4)^2+(-7-3)^2
sq root(6)^2 + (-10)^2
sq root (36)+(100)
sq root 136
equals 11.66 which rounds up to 11.7
