She can spend 7.50 dollars and have 4 left over
Answer:
The required position of the particle at time t is:
Step-by-step explanation:
Consider the provided matrix.
The general solution of the equation
Substitute the respective values we get:
Substitute initial condition
Reduce matrix to reduced row echelon form.
Therefore,
Thus, the general solution of the equation
The required position of the particle at time t is:
Answer:
Step-by-step explanation:
Given
A baby kitten, gained 120 grams of weight in 1/3 of a month.
he gain in 1 month
Solution
1/3 month =120gram weight
1 month =120×3
=360 gram is the answer
Answer:
4 - ( 3x - 8 ) = 21
break the bracket first ,it gives : 4 - 3x + 8 = 21
12 - 3x = 21
- 3x = 21 - 12
- 3x = 9
-x = 9/3
-x = 3
X = - 3
[ check if the answer is correct, put -3 instead of X in the above equation ! we get 4 - { 3(-3) - 8 } = 21
4 - { - 9 - 8 } = 21
4 - { - 17 } = 21
break the bracket, minus and minus will multiply and will become plus , so we have 4 + 17 = 21 , hence 21 = 21 ! therefore X = -3