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

4 adults and 12 babies

step-by-step explanation:

4 x 7 = 28

12 x 15 = 180

180 + 28 =208

4 x 3 = 12

trapezoid

step-by-step explanation:

first i plotted all my points on a grid graph

i made sure all of them were in the correct quadrant

then i saw it was a trapezoid or a quadrilateral