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joan
Questions and answers by visitors named
joan
Questions (72)
if I have 1 dime, two nickels and 4 pennies and I have to use tally lines to show the amount of coins, do I use 7 tally lines or
4 answers
548 views
what are 4 elements that make up bulk of living matter?
4 answers
713 views
name the element found in small amounts in the body, that is needed to make homoglobin for oxygen transport.
1 answer
400 views
although there are many specific "jobs" that certian cells are able to do, name 5 functions common to all cells
1 answer
341 views
list 3 different cell shapes
2 answers
520 views
describe briefly how the particular structure of a neuron relates to it's function in the body
4 answers
1,417 views
need to make a drug free poster for school
1 answer
197 views
dave is traveling in his car at 16m/s. he maintains this speed for 60 seconds. what is his acceleration in meters per second
1 answer
333 views
a skydiver experiences a downwar force due to gravity of 700 N and an upward force of air resistance of 570 N. The mass of the
1 answer
659 views
A 1.00-g sample of solid calcium was burned in fluorine to give a 1.95 g sample of pure CaF2. The energy given off in this
2 answers
815 views
Which of the following solutes in aqueous solution would be expected to exhibit the LARGEST freezing-point lowering (assuming
2 answers
1,058 views
how to factor 4x^2+4x-1
and x^2-2x+1=5
1 answer
235 views
what are the rules or attributes for shapes
1 answer
407 views
"during a heated argument with his father, 15 y/o Jason developed a pralysis of his right arm. Medical examinations can find no
4 answers
887 views
what is the ratio of 36cm to 9dm
2 answers
977 views
ivested $1,500 in the stock market on january 1, she lost 1/3 of it by the end of january and 2/5 of the remaininbg amount by
4 answers
498 views
3. Suppose a ladder is 12 ft. long. The base of the ladder is 5 ft. from a wall, and the top of the ladder is leaning against
3 answers
1,165 views
water and ammonia have different molar heats of vaporization. the best interpretation at the molecular level is that water
4 answers
1,639 views
How many grams of Al(NO3)3 are needed to prepare 25.0 mL of a 0.750 M aqueous solution.
2 answers
576 views
Write the balanced equation for the combustion of C2H5(NH2)CO2H . The nitrogen is converted to N2O4
1 answer
457 views
The compound X4C3 contains 15.03% carbon. What is the chemical symbol for X ?
1 answer
439 views
8750 g of a compound which contains only carbon, hydrogen, and nitrogen were burned in oxygen to produce, 2.1930 g of N2O4 , and
1 answer
661 views
What is the maximum mass of H2 formed, when 0.380 g of aluminum are reacted with 55.0 mL of 8.00 M HCl? The other product is
1 answer
367 views
7.25 g of iron were reacted with sulfur until the product reached a constant mass of 13.50 g. If the experimental molecular mass
1 answer
450 views
7.25 g of iron were reacted with sulfur until the product reached a constant mass of 13.50 g. If the experimental molecular mass
2 answers
525 views
Europium has two stable isotopes, 151 Eu (150.9198 u) and 153 Eu (152.9212 u). The atomic mass given for Eu is 151.9640 u. What
4 answers
4,441 views
The compound X4C3 contains 15.03% carbon. What is the chemical symbol for X ?
3 answers
315 views
Europium has two stable isotopes, 151 Eu (150.9198 u) and 153 Eu (152.9212 u). The atomic mass given for Eu is 151.9640 u. What
2 answers
607 views
What is the maximum mass of H2 formed, when 0.380 g of aluminum are reacted with 55.0 mL of 8.00 M HCl? The other product is
1 answer
348 views
how to write article review ?
1 answer
306 views
how to prove sss conguence ?
2 answers
778 views
what is mixed cropping ?
1 answer
239 views
who is meant by stupa ?
1 answer
433 views
which has moroe bouyancy when dpped in water ? iron ? aluminiom ?
1 answer
417 views
3. The solubility of BaSO4 at 25C is 9.04 mg/L. Based on this, how many grams and moles of BaSO4 remained dissolved in the
2 answers
649 views
listing the different sources of short-term financing. Discuss the characteristics of each source and explain why a company
3 answers
433 views
From the top of a hill 700 ft high an observer notes that the angles of depression of two successive markerstones on a level
1 answer
411 views
a 400 kg crate is to be lifted a height of 20 m in 30 s. Compute the work done and the power consumed in lifting the crate
1 answer
425 views
A uniform steel chain 20 m long and with a mass of 5 kg per m, hangs vertically. Compute the work required to wind it up
2 answers
795 views
A 20 g sample of aluminum at 85 degree is dropped in 500g of water. The resulting temperature of aluminum and water is 25
2 answers
541 views
How much heat is required in order to change 5 g of ice at -15 degree to steam at 150 degree?
3 answers
3,818 views
when sin theta+cos theta=square root of 2,find the solution of sin^3 theta+cos^3 theta
1 answer
441 views
How can is the importance of health documentation on patient services can affect reimbursement ?
1 answer
407 views
solve for x 4(2x-1)= 2x+35
2 answers
533 views
What is the difference between ICD-9-CM codes and MS-DRGs?
1 answer
417 views
Describe how Reconstruction was brought to an end by white terror and the Compromise of 1877. Had the process of Reconstruction
2 answers
554 views
1. This experiment separates meat into an acetone-soluble part and an acetone-insoluble part. The calculations are based on the
5 answers
1,488 views
. This experiment separates meat into an acetone-soluble part and an acetone-insoluble part. The calculations are based on the
4 answers
917 views
three digit odd number divisible by 9 digits in consecutive order and digit in hundreds place is greater than the digit in the
3 answers
618 views
to find the height of a tree, a student 53 inches in height measures the length of the tree's shadow and the length of his own
1 answer
414 views
For a given area of land, the average rate of creep is 14 mm per year. How long will it take the area to move 1 m?
1 answer
444 views
find tan 30 degrees and tan 45 degrees using the 45-45-90 triangle therom and
30-60-90 triangle theorm
3 answers
1,118 views
what is tan-1 3.5= to
1 answer
238 views
when 2.750 g of the oxide of lead is heated to a high temperature,it decomposes to produce 0.0640 g of oxygen gas and 2.686 g of
3 answers
449 views
simply (ab) cubed/ (3a) squared * b
1 answer
378 views
A steel ball of mass m=5 g is moving at a speed of 250 m/s toward a large mass M=2.2 kg which is connected to a relaxed spring,
3 answers
1,488 views
on what day will 8,000 earn 180 interest when invested on April 25, 2002 at 9% simple interest? use ordinary interest and actual
4 answers
1,657 views
if amores has the capital of 1,616,000 while andrada is to invest sufficient cash to give him a one-third interest in the
2 answers
563 views
Mark Lopez went to his bank to find out how long it will take for P10,000 to amount to P10,700 at 12% simple interest. Express
3 answers
695 views
Accumulate 3,200 for 2 years and 6 months at 5 1/2% simple discount.
3 answers
835 views
A note for 9,000 dated August 12, 2002, is due on October 20, 2002 with simple interest at 9%. If the note is discounted on
3 answers
757 views
find the base and height of triangle in ratio 8to 5 and area is 320
4 answers
429 views
what is a run-on sentence?
1 answer
307 views
1.352 pounds is what fraction of a short ton?
A. 169/250 B.77/100 C. 2/4 D. 140/223
3 answers
761 views
A garden in the farm of a square, is surrounded by a path which is 1m wide on two opposite sides and 1/2m wide on the other two
5 answers
594 views
a rectangular plot of farmland will be bounded on one side by a river and on the other sides by a single strand electric fence .
3 answers
1,141 views
A copper wire with cross sectional area 0.00030cm^2 is to be used in lifting a 100g object.How fast can the object be
1 answer
410 views
1. A car slows down from 23 m/s to 14 m/s over a time period of 3 seconds. The car’s mass is 1330 kg. What is the car’s
1 answer
412 views
two airplane fly toward each other from points 900 miles apart, at the rate, per hour, of 300 miles and 250 miles. when will
2 answers
511 views
the specific volume of water vapor at 150 kPa and 120 degree celsius is 1.188 cubic meter/kg. determine the molar-specific
1 answer
462 views
In a recent year, of all registered doctors were female. If there were female registered doctors that year, what was the total
3 answers
1,026 views
Amita decided that she wants the mold to have a square base. How many of the possiblemolds can she make.
3 answers
466 views
