Answer:
option-C
Step-by-step explanation:
We are given row-echelon form
So, we can write equation from matrix as


Let's assume

now, we can find x and y




so, we get solutions as



where t can be any real numbers
Answer:
Yes; K= -2 and y=-2x
Step-by-step explanation:
1+2=3
3+2=5
Answer:
Below
Step-by-step explanation:
30 = 6 + 2x
30 = 6 + 2x
24 = 2x
x=12
Option C) Smith have to pay $180 at the time of purchase.
<u>Step-by-step explanation:</u>
Mrs. Smith wants to use an installment plan to buy a washing machine and dryer set priced at $1,500.
- Therefore, the total cost = $1500
- The down payment for the installment plan is 12%.
We need to find the payment amount at the time of purchase.
This can be calculated by finding the 12% of the total price $1500.
Smith have to pay at the time of purchase = 12% of 1500
⇒ (12/100) × 1500
⇒ 12 × 15
⇒ 180
Hence, option C) $180 is the amount need to be paid by the Smith at the time of purchase.