The Cumulative number (in thousands) of deaths from a certain disease from 2000 to 2010 may be modeled by A=2.39x2+5.04x+5.1, where x=0 corresponds to 2000, x=1 to 2001, etc. Use the formula for A to estimate symbolically the year when the total number of deaths reached 140 thousand.

what?

Step-by-step explanation:

last option: rhombus or kite

step-by-step explanation:

a kite and rhombus have the same shape. as we don't have any specific formula for the calculation of area of kite. the diagonals are used to calculate the area of a kite or rhombus.

the formula for area of rhombus is given by:

here, d_1 is the first diagonal and d_2 is the second diagonal.

so,

last option is the correct answer ..

12cm

the answer is d