Angles A and B are supplementary.If mangle A= 78° what is mangle B?

Angles A and B are complementary. If ${\displaystyle m\mathrm{\angle }A=27\circ }$, what is the $m\mathrm{\angle }B?$ ${\displaystyle m\mathrm{\angle }B=\circ degrees}$

Distance between (3,-2,-12) and (5,-8,-16)?

A machine part is made from a rectangular prism with a smaller rectangular prism cut out of it, as shown below. What is the volume of the part? Circle the correct answer.
A 20 cubic centimeters
B 140 cubic centimeters
C 160 cubic centimeters
D 180 cubic centimeters
Leo chose D as the correct answer. How did he get that answer?

Express the plane z=x in (a) cylindrical, and (b) spherical coordinates.

For a triangle ABC, prove that angle C is a right angle if and only if the median of side c is c/2

Use modulo reduction of the base, if applicate, and the power decomposition calculations on congruences, to calculate the least non-negative residue (or equivalently the congruence class) of the folowing:
${\displaystyle {8052}^{403}\text{mod}5}$

can u explain how o solve this