Answer:
3003.
Step-by-step explanation:
This is the number of combinations of 5 books from 15 = 15C5
= 15! / 10! 5!
= 15*14*13*12*11 / 5*4*3*2*1
= 3*7*13*11
= 3003.
Answer:
<em>B + 21</em>
or
<em>21 + B</em>
Step-by-step explanation:
<em>The sum of B and 21 </em>
<u>The sum of</u> : means to add B and 21
The algebraic expression would be: B + 21 or 21 + B (depending on how you/your teacher wishes it to be written)
Answer: Im pretty sure its 96.012
Answer:65
Step-by-step explanation:
65=42+72=12+8 since 65 is the product of 13 and 5
Hello,
Answer C
y=3x+1
y=-x+5
==>3x+1=-x+5
==>4x=4
==>x=1 and y=-x+5=-1+5=4
(1,4) is the solution.