Answer:
a. 5,040 ways
b. 210 ways
Step-by-step explanation:
a) We want to pick 4 numbers out of 10 given that orders matter
If orders do matter, it will be a permutation problem
Mathematically;
n P r = n!/(n-r)!
In this case, n is 10 and r is 4
Thus, we have it that;
10 P 4 = 10!/(10-4)! = 5,040
b) if orders do not matter
It will be a combination problem
n C r = n!/(n-r)!r!
n = 10 and r = 4
10 C 4 = 10! /(10-4)!4!
= 210
ANSWER: The numbers are 20 and 19
39-19= 20
20+19= 39
The answer is 12 good luck;)
Yes ! I can help you.
-- Take each fraction.
-- Do the division . . . (top number) divided by (bottom number) .
-- Write the whole number from the quotient.
Save the remainder.
-- After the whole number, write a fraction.
Copy the original bottom number to the bottom of the fraction.
-- Copy the remainder from the division to the top of the fraction.
Bada-bing ! There's your mixed number.
Answer:
c) 60-40i-75i^2
Step-by-step explanation:
first you multiply out the brackets then collect like terms to get the answer
