7,000,000+80,000+200+80+7
Answer:
462ways
Step-by-step explanation:
This Is a combination problem, we we are expected to determine the number of possible ways of selecting the numbers of staffs for a business trip
C(n, r) were n= 11
r=5
C(n, r) = n!/(n-r)! r!
C(n, r) = 11!/(11-5)! 5!
C(n, r) = 11!/(6)! 5!
C(n, r) = 11*10*9*8*7*6!/(6)! 5*4*3*2*1
C(n, r) = 11*10*9*8*7/5*4*3*2*1
C(n, r) = 55440/120
C(n, r) = 462
The number of possible ways is 462
Step-by-step explanation:
Sum means adding of numbers
Product means multiplying the numbers
Difference means minus two numbers
First number is 2 and other number is 9.
Sum of 2 and 9 = 2+9 = 11
Product of 2 and 9 = 2×9 = 18
Difference between 2 and 9 = 9-2 = 7
Hence, this is the required solution.
the other parallel side is 30 cm
Step-by-step explanation:
here's the solution :-
let the other parallel side be x
now,
=》Area of trapezium =
![\frac{1}{2} \times sum \: of \: parallel \: sides \times height =》[tex] \frac{1}{2} \times (x + 20) \times 16 = 400](https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B2%7D%20%20%5Ctimes%20sum%20%5C%3A%20of%20%5C%3A%20parallel%20%5C%3A%20sides%20%5Ctimes%20height%20%3C%2Fp%3E%3Cp%3E%3C%2Fp%3E%3Cp%3E%3C%2Fp%3E%3Cp%3E%3D%E3%80%8B%3C%2Fp%3E%3Cp%3E%5Btex%5D%20%5Cfrac%7B1%7D%7B2%7D%20%20%5Ctimes%20%28x%20%2B%2020%29%20%5Ctimes%2016%20%3D%20400)
=》( x + 20 ) × 8 = 400
=》x + 20 = 400 ÷ 8
=》x = 50 - 20
=》x = 30
so length of other parallel side = x = 30 cm
