Answer:
I dont know it and why did you leave it off the last minute and use photo math
Step-by-step explanation:
Answer:
Step-by-step explanation:
Std dev = sqrt of variance
hence variance would be 17^2= 289
Answer:
stuff with math
Step-by-step explanation:
12 problems = 30 minutes
24 problems = 60 minutes
36 problems= 90 minutes
48 problems = 120 minutes
60 problems = 150 minutes
Mary can respond 60 problems in 2 hours and 30 minutes/ 2 hours and half/ 150 minutes.
Hope this helps xx
