The Martin family wants to buy a new computer. The regular price is $949. The store is offering a 15% discount and a sales tax of 7% is added after the discount. What is the total cost of the computer? A. $873.08

B. $798.76

C. $863.12

D. $579.20

a = 11 : 4

b = 38

c = 1 for every 6

  answer:

  write 548 as 500 + 40 + 8. multiply each addend by 5. then add the three products to get 2,740.

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus