Answer:
m = 9
Step-by-step explanation:
Using the rules of exponents
=
× ⇔
=
Then
× = 243 ← express all values to base 3
× =
× =
× =
=
Since bases on both sides are equal, both 3 , then equate exponents
- 3m - 4 = 5 ( add 4 to both sides )
- 3m = 9 ( divide both sides by - 3 )
m = - 3
Answer:Let T be an linear transformation from Rr to Rs. Let A be the matrix associated to T
Fill in the correct answer for each of the following situation
...1)Every row in the row - echelon form of A has a pivot
....2)Two rows in the row - echelon form of A do not have pivots
....3)The row - echelon form of A has a pivot in every column.
.....4)The row -echelon form of A has a row of zeros
Step-by-step explanation:
4a. 3,000m=3km.
5a. 1,000m=1km.
6a. 10km.= 10,000m.
7a. 8m.= 800cm.
8a. 9km= 9,000
9a. 5m.= 500cm.
10a. 7km.= 7,000cm.
4b. 400cm.= 4m.
5b. 600cm.= 6m.
6b. 900cm.= 9m.
7b. 5,000m.= 5km.
8b. 10m.= 1,000cm.
9b. 4km.= 4,000m.
10b. 8,000m.= 8km.
When a number (x, for example) is placed in absolute values, |x|, the number inside will always be positive.
So, for your question:
|-25| will become 25
25 is your answer
hope this helps
Answer:
Step-by-step explanation:
Given data
let hats be h
and shirts be s
Rob brought a hat and 3 shirts for 35$. Dan brought 2 hats
h+3s= 35--------1
and a shirt for 20$
2h+s= 20--------2
Hence the systems of equations is given as
h+3s= 35--------1
2h+s= 20--------2