sarah_98
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 sarah
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Questions Answered

sarah_98:
explain the enzymes working in the digestive system
 updated 2 months ago
 3 replies
 5 Medals
Mathematics

sarah_98:
why do athletes eat foods high in protein during training?
 updated 7 months ago
 18 replies
 1 Medal
Mathematics

ShawnyD:
Raven’s parents bought a 20’ ski boat for $22,000. After 2 years, the boat was worth 17,500. Using x as the number of years and y as the boa…
 updated 11 months ago
 6 replies
 No Medals Yet
Mathematics

sarah_98:
WHY IS NPK(FERTILISER) CALLED SO?
 updated 11 months ago
 6 replies
 1 Medal
Mathematics

ohyeahh:
Let f(x) = ax + b where a and b are real numbers, f(f(f(1))) = 29 and f(f(f(0))) = 2. Then b equals ??
A start would be good.
 updated 11 months ago
 27 replies
 1 Medal
Mathematics

sarah_98:
do we use "I" in narrative writing?
 updated 11 months ago
 5 replies
 1 Medal
Mathematics

ohyeahh:
How can i find the maxima and minima using differentiation?
http://prntscr.com/144wz6
 updated 11 months ago
 32 replies
 2 Medals
Mathematics

sarah_98:
equation "y=mx+c"
 updated 11 months ago
 3 replies
 No Medals Yet
Mathematics

sarah_98:
3 catalysts which contribute in modern industry & how?
 updated 11 months ago
 11 replies
 1 Medal
Mathematics

sarah_98:
complete and balance this rquation for the combustion of ethanol, when its used as fuel:
' C2H5OH+>.........+O2
 updated 11 months ago
 11 replies
 1 Medal
Mathematics

bloodrain:
There should be an autospam detector that detects when you post many times in a row.
Penalties could be:
…
 updated 11 months ago
 20 replies
 9 Medals
Mathematics

sarah_98:
how do we solve:
4(x1)^2?
 updated one year ago
 4 replies
 1 Medal
Mathematics

sarah_98:
the density of ice is 1.00gcm3. what is the volume of steam produced when 1 cm3 of ice is heated to 323c at a pressure of one atmosphere.? (…
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

sarah_98:
given that v is proportional to 1/t2, complete:
t: 2 5 ? 10
v:25 ? 0.25 ?
 updated one year ago
 14 replies
 No Medals Yet
Mathematics

sarah_98:
given that z is proportional to 1/y complete:
y: 2 4 ? 0.25
z: 8 ? 16 ?
 updated one year ago
 14 replies
 1 Medal
Mathematics

sarah_98:
the distance d through which a stone falls from rest is proportional to the square of the time taken t. if the stone falls 45m in 3 seconds,…
 updated one year ago
 15 replies
 2 Medals
Mathematics

sarah_98:
solve the simultaneous equation x+y=2 and x(square)+2y(square)=11
 updated one year ago
 13 replies
 1 Medal
Mathematics

sarah_98:
a bus is travelling with 48 passengers. when it arrives at a stop, 'x' passengers get off & 3 get on. at the next stop half the passengers g…
 updated one year ago
 8 replies
 3 Medals
Mathematics

sarah_98:
a bus is travelling with 52 passenger. when it arrives at a stop, "y" passengers get off & 4 get on. at the next stop, onethird of the pass…
 updated one year ago
 10 replies
 1 Medal
Mathematics

idreamparis:
a woman stands on the bank of a frozen lake with a dog by her side. she skims a bone across the ice at a speed of 3ms. the bone slows down w…
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

sarah_98:
help in algebra??!?!
 updated one year ago
 17 replies
 3 Medals
Mathematics

sarah_98:
What is an irritational number?
 updated one year ago
 45 replies
 4 Medals
Mathematics

sarah_98:
ryan puts $500 into a bank account. the bank pays 5% compound interest per year. how much is the interest after one year?
 updated one year ago
 15 replies
 3 Medals
Mathematics

sarah_98:
ryan says that there is a pole of length L= 88.2 CM.
ROUND THIS TO THE NEAREST WHOLE NUMBER
 updated one year ago
 7 replies
 1 Medal
Mathematics

sarah_98:
there are approximately 500,000 grains of wheat in a 2 kg bag. calculate the mass of 1 grain in grams
 updated one year ago
 17 replies
 2 Medals
Mathematics

sarah_98:
the population expected of a city is 550,000. its expected that this population will increase 42% by the year 2008. calculate the expected p…
 updated one year ago
 27 replies
 No Medals Yet
Mathematics

sarah_98:
in 2006 the number of tickets sold was 210. the ratio; (no. of adult tickets: no. of student tickets) was 23:19. how many tickets were sold?…
 updated one year ago
 12 replies
 1 Medal
Mathematics

sarah_98:
each year a school organizes a concert. in 2004 the cost of organizing the concert was $385. in 2005 the cost was 10% less than in 2004. cal…
 updated one year ago
 34 replies
 1 Medal
Mathematics

sarah_98:
can anyone explain "cummulative frquency graphs" to me?
 updated one year ago
 16 replies
 No Medals Yet
Mathematics

sarah_98:
the surface of the earth is approximately 510000000 square km. write it in standard form
 updated one year ago
 6 replies
 No Medals Yet
Mathematics
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