A child can explain that 3×2 represents 3 sets of 2. Concrete operational, mathematical transformations. A child doesn't sneak a cookie when his mom outside because he thinks that she can see what he sees.
Answer:
-34z + 370
Step-by-step explanation:
322 - 24z + 48
(322 + 48) - 34z
370 - 34z
Best of Luck!
Quartile 1 is 211. quartile 2 is 226 , and quartile 3 is 265.5
Answer: we can make 15,504 different math tests
Step-by-step explanation:
Ok, we have a bank with 20 questions (Q1, Q2........ , Q20)
and we want to make a test with 15 of those 20 questions.
As the order of the questions does not matter in the thest ( is the same if the order is Q1, Q2, ...., Q15 than if the order is Q15, Q14, ....., Q1 )
So we only want the number of combinations.
When we have N elements and we want to create groups of K elements, the total number of combinations is:
Here N = 20 and K = 15
So we can make 15,504 different math tests