chris is making a table top.feom some leftover tiles.he has 9 tiles that measures 3 1\8 inches long and 2 3\4 inches wide.what i
s the area he can cover with theaae tiles.? HELP FAST.PLEASE I NEED AWSER FAST PLEASE PLEASE PLEASE AND IF YOU ANSER TELL ME WHATTHE AWSER AND WHAT I NEED TO TO DO GET THE AWNSER PLEEEEEEASE YOU HAVE NO IDEA HOW I NEED HEEELP is the morning and i need to go to schoool at 7:30am pleaaaase heeeeelp
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Answer:
Step-by-step explanation:
-Let x be the sample size and n the population size
-The conditions for a one-sample proportion z-test are:
-The sample is randomly selected from the population.
-The sample size is greater than or equal to ten times the population size:
-The expectation np is greater than or equal to 10:
Answer:
20 mph and 4 mph
Step-by-step explanation:
GIVEN: A boat travels upstream for miles in
hours and returns in
hours traveling downstream in a river.
TO FIND: What is the rate of the boat in still water and the rate of the current.
SOLUTION:
Let the speed of boat in still water be and speed of current be
.
speed of water in upstream
speed of water in downstream
As
Solving both we get
Hence speed of boat in still water and rate of current is 20mph and 4mph respectively.