Answer:
a)How many different ways can you allocate the 22 students to the projects? =2300
b) how many different ways can you allocate the 22 students to the projects= 286
Step-by-step explanation:
check attachment for detail explanations
Answer:
144
Step-by-step explanation:
(100/5) x 4 + ( 4 to the power of 3 ) = 144
Hope that helps you.
Answer:
The measure of z is 17
Step-by-step explanation:
90 plus 73 equals 163
180 minus 163 equals 17
Answer:
see explanation
Step-by-step explanation:
Using the sum/ difference → product formula
cos x - cos y = - 2sin( )sin ( )
sin x - sin y = 2cos ( )sin ( )
Given
(cosA - cosB)² + (sinA - sinB )²
= [ - 2sin()sin( ) ]² + [ 2cos( )sin( ) ]²
= 4sin² ( )sin² ( ) + 4cos² ( )sin² ( )
= 4sin² ( )[ sin² ( ) + cos² ( ) ← sin²x + cos²x = 1
= 4sin² ( ) × 1
= 4sin² ( ) = right side ⇒ proven