You must calculate how many ways can 2 people be selected from 65.
The formula is:
n! / r! * (n-r)! =
65! / 2! * 63! =
65*64*63! / 2 * 63! =
65*64 / 2 =
2,080 handshakes
Source:
http://www.1728.org/combinat.htm
10) 46
11) 115
12) 23
13) 161
14) 92
15) 138
16) 0.368
17) 9
18) 765
19) 336
20) 122.1
21) 0.45
22) 52
23)$33.60
24) 1 hour 12 minutes
25) 95
26) 398.24
27) A)
Test Number Correct Score Total
Math 68 ( 80% ) 85
Science ( 63 ) 90% 70
B) Science
C) 48 Questions
Answer:
a = 9
Step-by-step explanation:
45 = 4(a + 3) – 3
Add 3 to both sides.
48 = 4(a + 3)
Divide both sides by 4.
12 = a + 3
Subtract 3 from both sides.
9 = a
a = 9
Answer: a = 9
1- The interest rate is 7.5/year so 7.5/.75 year(9 months) at 500$ which would produce a profit of 28.13$ so a total of 528.13
2-7.5/year for 1.5 years(18 months) at 500$ so total interest is 56.25$ so the total is 566.25$
Answer:
B is correct my guy. Hope this helps!
