The mystery number is a four-digit number. its digits are 5, 4, 7, and 3. the 5 and the 7 are the two middle digits. the 5 comes after the 7.the 3 is not the first digit. what is the mystery number?

Step-by-step explanation:

Given: The mystery number is a four-digit number.

The digits used to make the number : 5, 4, 7, and 3.

Since , 5 and the 7 are the two middle digits.

Then , the number would look like

The 5 comes after the 7.

Then , the number would look like  [i.e.   is not representing  the mystery number]

The 3 is not the first digit, then 4 must be the first digit.

Hence, the mystery number should be :

step-by-step explanation:

two pairs of adjacent sides are of equal length. this implies that one diagonal divides the kite into congruent triangles, and so the angles between the two pairs of equal sides are equal in measure. it also implies that the diagonals are perpendicular.