Sydney is cutting the crust from the edges of her sandwich. the dimensions, in centimeters, of the sandwich is shown. which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust? a) 8x2 + 34; 43.6 centimeters b) 8x2 + 34; 45.52 centimeters c) 4x2 + 17; 21.8 centimeters d) 4x2 + 17; 22.76 centimeters

Option b) 8x²+34; 45.52 centimeters

Step-by-step explanation:

Length of the sandwich is = 2x²+8 centimeters

Breadth of the sandwich = 2x²+9 centimeters

Therefore total perimeter of the sandwich = 2(length + breadth)

                                         = 2 (2x²+8+2x²+9) centimeters

                                         = 2( 4x²+17) centimeters

                                         = (8x² +34) centimeters

If x = 1.2 then perimeter of the sandwich =

                                                                   = 2(4×1.44+17) = 2(5.76+17)

                                                                   = 2×22.76 = 45.52 centimeters

So the answer is option b) 8x²+34; 45.52 centimeters

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.

the answer is 8/21

hope this