In rhombus ABCD shown, m angle A = 140 and diagonal BD has been drawn. If side BC is dilated with D as the center and a using a scale factor of 1/2, then which of the following would be the measure of angle DB’C’?
(1)10
(2)20
(3)40
(4)70

The function f(x)= x5+ ( x + 3)2 is used to create a table. if x = -1 then what is f(x)?

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?

Find the tenth term in the following geometric sequence. 8, 4, 2, 1, . .a) 13b) 0.0078c) 0.0156d) 12.5