If ⃗ = + + is perpendicular to both ⃗ = 5 + − 2 and = 3 − 3 + 6 , find and .

The values of and are 0 and 2, respectively.

Step-by-step explanation:

If is perpendicular to and , then the following relationships must be observed:

(1)

(2)

Then, we expand the previous expressions:

(1b)

(2b)

Then, we solve for and :

The values of and are 0 and 2, respectively.

total amount to be paid = $19.5

step-by-step explanation:

given ,

original price = $25.99

discount = 25%

discount amount = 25% of original price

discount amount = 25/100   * 25.99

discount amount = $6.49

hence , the total amount to be paid = original price - discount amount

                                                            = $25.99 - $6.49

                                                            =$19.5

total amount to be paid = $19.5