If the diagonals of quadrilateral DEFG are(Congruent, not congruent) and (bisect the opposite angles, do not bisect the opposite angles) , then quadrilateral DEFG must be a rhombus.

If t17 = 3 (t5) in an arithmetic progression, find t1 in terms of d.

An electrician cuts a 136 foot long piece of cable. one piece is 16 feet less than 3 times the length of the other piece. find the length of each piece

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?