How do we calculate the area of this quadrilateral using the coordinates of the four vertices? The answer is simple. We divide the quadrilateral in two triangles (using either of the diagonals), calculate the (positive value of) the areas of each triangle, and add these values to obtain the total area.

Step-by-step explanation:

jayfeather friend me

7 0

3 years ago

ron wants to buy a videoo game with a selling price of $48 on sale for 50% off. the sales tax in his state is 4.5% A)how much wi

levacccp [35]

48 * .5 = 24

24 the amount of money discounted off the price

Therefore it would be 48 - 24 = 24, but then comes the sales tax.

Do 24 * .045 = 1.08

1.08 is the amount of tax owed on the game so you'd do

24 + 1.08 = 25.08

A) The total cost for the game is 25.08

B) Unfortunately he is short by 8 cents and won't be able to buy the video game he wants.

8 0

3 years ago

If she saved $7.29 on her first purchase by using this credit card, what was the total price of the items before the discount?

dem82 [27]

Answer: Try $91.13

Step-by-step explanation: Just took a test for it ;-; dunno if its right

7 0

3 years ago

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