Answer:
you are my idol
Step-by-step explanation:
Keep working. Karma is real
2/440 Original Mathematical Expression.
1/220 Divide numerator and denominator by 2.
This equals . . .
0.004545454545 repeating
(I just plugged 1/220 into calculator)
Final Answer: 1/220 or 0.004545454545 repeating
Answer:1077
Step-by-step explanation:
Combination = doesn't matter what order
Permutation = order matters
There are <u>two</u> methods to work out combinations.
Method 1 List out possibilities
123 124 125 126 127 134 135 136 137 145 146 147 156 157 167
234 235 236 237 245 246 247 256 257 267
345 346 347 356 357 367
456 457 467
567
For a total of
35 combinations.
Method 2 Use a formula.
It's a rather complicated one, so only use it if you have a lot of possibilities.

(n is the number of choices, r is the amount you choose, and ! is a function that multiplies together all numbers down to 1)
Answer:
456 chairs
Step-by-step explanation:
If there are 6 round tables with 7 chairs each you would multiply 7, 6 times (7 x 6) = 42
If there are 23 rectangular tables with 18 chairs each you would multiply 18, 23 times. ( 18 x 23) = 414
Then you add up all the chairs, 456 chairs total.
If I'm wrong I'm so sorry
if I'm right Thank you (brainliest plz)