Search found 87 matches

Return to advanced search

rectangular swimming pool is twice as long as it is wide  TOPIC_SOLVED

A rectangular swimming pool is twice as long as it is wide. A small concrete walkway surrounds the pool. The walkway is a constant 2 feet wide and has an area of 196 square feet. Find the dimensions of the pool.
by FWT
on Sat Feb 28, 2009 8:54 pm
 
Forum: Geometry
Topic: rectangular swimming pool is twice as long as it is wide
Replies: 4
Views: 5518

Re: rectangular swimming pool is twice as long as it is wide  TOPIC_SOLVED

my picture is like this +--------------+ | |2 |--+--------+ | | | | | |w | | | |--+--------+ | | | 2w | |2 +--------------+ 2 2 so the outside width is w+2+2=w+4 and th elength is 2w+2+2=2w+4 the pool area is 2w2 the whole area is (w+4)(2w+4)=2w2+4w+8w+16=2w2+12w+16 the outside part is 2w2+12w+16-2w...
by FWT
on Sun Mar 01, 2009 1:50 am
 
Forum: Geometry
Topic: rectangular swimming pool is twice as long as it is wide
Replies: 4
Views: 5518

how to do probability with a dart board thats R=9in, r=5in  TOPIC_SOLVED

how would i do probablty wit a dart board thats R=9in + r=5in. please help i cant figure this out.
by FWT
on Sat Mar 07, 2009 6:45 pm
 
Forum: Statistics
Topic: how to do probability with a dart board thats R=9in, r=5in
Replies: 2
Views: 4324

Re: how to do probability with a dart board thats R=9in, r=5in  TOPIC_SOLVED

i figured it out
by FWT
on Wed Mar 11, 2009 12:07 pm
 
Forum: Statistics
Topic: how to do probability with a dart board thats R=9in, r=5in
Replies: 2
Views: 4324

mean score 500, standard dev. 75, score in 75th percentile  TOPIC_SOLVED

The mean score on a certain standardized test is 500, with a standard deviation on 75. Jessie scored in the 75th percentile. What was Jessie's score and the z score?

Please help as soon as possibel. thx
by FWT
on Wed Mar 18, 2009 2:48 pm
 
Forum: Statistics
Topic: mean score 500, standard dev. 75, score in 75th percentile
Replies: 2
Views: 2730

find the volume of a bowl w measurements of 16 ft diam at  TOPIC_SOLVED

find the volume of a bowl with the measurements of 16 ft diameter at the bottom, 20 ft diameter at the top and the bowl is 2 ft high. the slope of the sides of the bowl (their straight, not curved) if you were looking at a cross section of it is 45 degrees. the answer need to be expressed in cubic f...
by FWT
on Wed Apr 01, 2009 12:03 am
 
Forum: Geometry
Topic: find the volume of a bowl w measurements of 16 ft diam at
Replies: 2
Views: 3551

Re: find the volume of a bowl w measurements of 16 ft diam at  TOPIC_SOLVED

i figured it out thnx
by FWT
on Fri Apr 03, 2009 11:24 pm
 
Forum: Geometry
Topic: find the volume of a bowl w measurements of 16 ft diam at
Replies: 2
Views: 3551

what range represents the middle 95% of the distribution?  TOPIC_SOLVED

Given a normal distribution of values for weight having a mean of 140 Pounds and a standard deviation of 6 pounds, what is the range of weights which would represent the middle 95% of the distribution? (Use the 68-95-99.7 standard deviation rule.)
by FWT
on Sun Apr 05, 2009 5:03 pm
 
Forum: Statistics
Topic: what range represents the middle 95% of the distribution?
Replies: 4
Views: 4141
Next

Return to advanced search