For the following true conditional statement, write the converse. if the converse is also true, combine the statements as a biconditional.

if x = 9, then x2 = 81.

a)if x2 = 81, then x = 9.
b)if x2 = 81, then x = 9.
x2 = 81 if and only if x = 9.
c)if x2 = 9, then x = 81.
d)if x2 = 81, then x = 9.
x = 9 if and only if x2 = 81

The converse statement  interchange the hypothesis and the conclusion.

The converse of x=9 then  is is true.

A biconditional statement is defined to be true whenever both parts have the same truth value . combining  the statements as a biconditional we have

If . = 81, then x = 9.  

x = 9 if and only if = 81

Option D is the right answer.

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 ..

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.