Sunday
October 23, 2016

# Posts by TIFFANY

Total # Posts: 910

math
A scuba diver dove from the surface of the ocean to an elevation of -79 9/10 feet at a rate of -18.8 feet per minute. After spending 12.75 minutes at that elevation, the diver ascended to an elevation of -28 9/10 feet. The total time for the dive so far was 19 1/8 minutes. ...
October 21, 2016

social studies
i cant find it
October 13, 2016

social studies
the what is it??? Ms.Sue
October 13, 2016

social studies
Which of the following was one important contribution made by Benjamin Franklin during the constitutional convention?? A.He called for an end to the Articles of Confederation B.He is know as the primary author of the U.S constitution C.He made a plea to delegates to accept the...
October 13, 2016

Physics
A cheetah can run approximately 100 km/hr and a gazelle at 80.0 km/hr. If both animals are running at full speed, with the gazelle 70.0 m ahead, how long before the cheetah catches its prey?
September 29, 2016

Algebra
Please help me find the slope of the curve for these problems. I don't know how to solve it. 1. Y = x^3 at P(-1,-1) 2. Y= x^4/2 at P (-1, 1/2) 3. Y = 8x^4 - 7x^2 + 5x +6 at P (-1,2)
September 22, 2016

English
Why did Raymond Carver make "Popular Mechanics" ending so ironically different from the Biblical tale "The Wisdom of Solomon"?
September 21, 2016

Government
Who creates executive branch departments? The president or Congress
September 21, 2016

Math
The wingspan of a Boeing 747-400 is 64.4 metres. a. If a scale model is built to the scale 1:20, what would the wingspan of the model be in centimetres? b. If the wingspan of another model is 53 cm, find the scale of the model in the form 1:x.
September 11, 2016

Social Studies
Why did the Pilgrims' government come about and why was its existence important. I know this has to do with the Mayflower Compact and was a formal method to establish systematic order among the Pilgrims but not sure why it came about and the importance.
September 8, 2016

Chemistry
I got an exact answer of 940.485447 without rounding with sig figs till the end. Thank you for clarifying.
September 7, 2016

Chemistry
Well 976°C. Minor calculation errors, but still. I do not know if this is correct or not.
September 7, 2016

Chemistry
"Aluminum metal melts at 658.5°C. What would be the final temperature if 28.0 grams of solid aluminum at this temperature were placed into 520 grams of liquid aluminum at 1000.0°C? The heat of fusion for aluminum is 396 J/g, and the specific heat of liquid ...
September 7, 2016

Algebra
Simplify 4√490k^2
September 3, 2016

Algebra
Evaluate the function. h(x) = x^3 + 4x^2 ; Find h(x-3)
September 2, 2016

Brief Calculus
The demand function for a certain brand of CD is given by p = −0.01x2 − 0.2x + 12 where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. The supply function is given by p = 0.01x^2 + 0.5x + 3 where p is the ...
August 3, 2016

Brief Calculus
The demand function for a certain make of replacement cartridges for a water purifier is given by the following equation where p is the unit price in dollars and x is the quantity demanded each week, measured in units of a thousand. p = −0.01x2 − 0.3x + 10 ...
August 3, 2016

English
Underline infinitive phrase and how is it used A few prospectors brave enough to explore the frozen interior found gold in the summer of 1896. To explore the frozen interior adj
May 11, 2016

Math
5p-7-2p=-3
May 9, 2016

Chemistry
For a particular isomer of C8H18, the following reaction produces 5104.1 kJ of heat per mole of C8H18(g) consumed, under standard conditions. (deltaH_rnx = -5104.1kJ) What is the standard enthalpy of formation of this isomer of C8H18(g)?
April 11, 2016

Math
Four people want to cross a bridge. They all begin on the same side. It’s night time and they only have one flash light with them. At most two people can cross the bridge at the same time, and any party who crosses, either one or two people must have a flashlight with ...
March 18, 2016

Math
Tommy has 5 jars. Each jar is 2/3 filled with marbles. How many full jars of marbles does tommy have ?
March 17, 2016

math
if an invoice is dated april 25 and has credit terms of 3/15 ,n/45 , what is the last date on which the net amount of the invoice can be paid without incurring an penalty
March 13, 2016

Math
Find the circumference of 15in and round your answer to the nearest tenth
February 26, 2016

college algebra
The​ half-life of​ carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree shows only 73​% of the​ carbon-14 expected in living​ matter, when did the tree​ die?
December 6, 2015

Chemistry
Find the volume of 0.250M sulfuric acid necessary to react completely with 79.3g sodium hydroxide
November 28, 2015

English
Ok I think I got it. The complete subject is taking the exam
November 19, 2015

English
Taking is the verb
November 19, 2015

English
there is the verb. helping verb is was am I close?
November 19, 2015

English
taking the exam
November 19, 2015

English
Please check my answer There was one student still taking the exam when the bell rang. Student is the subject and exam is the simple subject.
November 19, 2015

Chemistry
Thank you!
October 29, 2015

Chemistry
Calculate the mass of Fe(OH)3 s) produced by mixing 50.0 mL of 0.153 M KOH (aq) and 25.0 mL of 0.255 M Fe(NO3)3 (aq), and the number of moles of the excess reactant remaining in solution. I got 0.00383 mol Fe(NO3)3 remaining. I don't know how to obtain the mass of Fe(OH)3...
October 29, 2015

Chemistry
Identify the excess reactant (HCl or NaOH) and its molar concentration when 1.55 g of NaOH is stirred into 150.0 mL of 0.250 M HCl.
October 28, 2015

Chemistry
Calculate the mass of Fe(OH)3 s) produced by mixing 50.0 mL of 0.153 M KOH (aq) and 25.0 mL of 0.255 M Fe(NO3)3 (aq), and the number of moles of the excess reactant remaining in solution. I got 0.242 g Fe(OH)3 and 3.83 mmol Fe3+ remaining.
October 28, 2015

phsyics
The block shown in figure below lies on a smooth plane tilted at an angle è = 21.5° to the horizontal. Determine the acceleration of the block as it slides down the plane. Ignore friction.
October 28, 2015

Chemistry
How do you write the complete ionic equation and net ionic equation for ammonium chloride and copper (II) sulfate in water?
October 28, 2015

Chemistry
How do you write the complete ionic equation and net ionic equation for ammonium chloride and copper (II) sulfate in water?
October 27, 2015

Chemistry
I still don't get this problem! Toxic chemicals in drinking water usually are reported and a safety level specified in units of parts per million (ppm) by mass. What is the molar concentration of arsenic in a water sample that has 1ppm arsenic (As)? My teacher's work...
October 27, 2015

Write 16/40 in simplest form explain your work???
October 26, 2015

Chemistry
how many grams of baking soda is needed to neutralize 500ml of hydrochloric acid ?
October 26, 2015

Calculus
What is the average value of f(x) on [0,4] if the area between the graph of f (x) and the x-axis is equal to 12? I used the average value formula and got 12. But the answer key says 3. My work: M= 1/4 [12x] interval: [0,4] 48/4=12
October 25, 2015

Chemistry -Dr.Bob
Toxic chemicals in drinking water usually are reported and a safety level specified in units of parts per million (ppm) by mass. What is the molar concentration of arsenic in a water sample that has 1ppm arsenic (As)? DrBob222 1 ppm = 1 mg/L and although that isn't by mass...
October 25, 2015

Chemistry
Toxic chemicals in drinking water usually are reported and a safety level specified in units of parts per million (ppm) by mass. What is the molar concentration of arsenic in a water sample that has 1ppm arsenic (As)?
October 23, 2015

Algebra
Tameen keeps quarters, nickels, and dimes in his change jar. He has three more quarters than dimes and five fewer nickels than dimes. If there are 52 coins in the change jar, how many dimes are in the jar?
October 22, 2015

Calculus-Steve
Find the area of the region between the graphs of f(x)=3x+8 and g(x)=x^2 + 2x+2 over [0,2]. I got 34/3. Calculus - Steve ∫[0,2] (x^2+2x+2) dx = 1/3 x^3 + x^2 + 2x [0,2] = 8/3 + 4 + 4 = 32/3 Why are you taking the antiderivative of x^2 +2x+2 when we are trying to find the...
October 22, 2015

Algebra
Ticket sale for a music concert was \$2,160. Three times as many tickets were sold for the Saturday night concert as were sold for the Sunday afternoon concert. Two times as many tickets were sold for the Friday night concert as were sold for the Sunday afternoon concert. ...
October 22, 2015

Algebra
The perimeter of MNO is equal to the perimeter of square ABCD. If the lengths of the sides of the triangle are represented by 4x + 4, 5x - 3, and 17, and one side of the square is represented by 3x, find the length of a side of the square.
October 22, 2015

Calculus
Find the area of the region between the graphs of f(x)=3x+8 and g(x)=x^2 + 2x+2 over [0,2]. I got 34/3.
October 22, 2015

Physics
A married couple is driving on a dark road at night at the rate of 98.0 m/s until they see a clown 50m in front of them and slam the brakes to slow the car down to 10.0m/s and still manage to hit the clown. How much time would the clown have had to move before being roadkill? ...
September 20, 2015

math
Triangle ABC is congruent to triangle xyz.write congruence statements comparing the corresponding parts.then determine which transformations map ABC onto xyz
September 9, 2015

Chem
I did the calculation and I got 4.32 X10^44. Is that correct?
August 31, 2015

Chem
A pure silver ring contains 2.60X10^22 silver atoms. How many moles of silver atoms it contain?
August 31, 2015

Math
At the amusement park, you decide to ride the Ferris wheel, which has a maximum height of 50 meters and a diameter of 35 meters. It takes the wheel 5 minutes to make one revolution. If you start your ride at the midline and the ferris wheel rotates counter clockwise, how many ...
June 19, 2015

Science 207
Discuss the potential effect of each contaminate oil,vinegar,and detergent on the towns water source and the peopleasure who drink the water
June 15, 2015

Computer Science
A public transport company provides three types of transports to its passengers to travel from city A to city B of different state. The three types of transports are train, bus and taxi. Each transport has different charges and maximum seats limit. The table below shows the ...
June 13, 2015

algebra
A soccer field has an area of 312 square yards. Its length is 2 yards longer than twice its width. Find the width of the soccer field.
June 5, 2015

math
how to cut a 10 ft board into 9 smaller boards
May 25, 2015

Statistics
The estimate of the population proportion is to be within plus or minus 0.06%, with a 99% level of confidence. The best estimate of the population proportion is 0.22. How large a sample is required? Round answer to the next whole number.
May 3, 2015

Bus 308
The z score will be comparatively large
April 26, 2015

chemistry
What is the volume occupied by 0.738g of xenon gas at STP?
April 23, 2015

Math
The two numbers are 63.36 and 7.04
April 17, 2015

geometry
A small airplane takes off from point A and continues to climb upward in a straight line, as shown in the diagram. What is the plane’s distance from point A when it reaches point C
April 7, 2015

Math
a 6,000 seat theater has tickets for sale at \$26 and \$40 . How many tickets must be sold at each price for a sell out performance to generate a revenue of \$190500?
April 3, 2015

Chemistry
1. Iron oxide and carbon monoxide react according to the following equation . Identify which reactant is limiting and which is excess if 43.5 grams of Fe2O3 reacts with 43.5 grams of CO Fe2O3 + 3CO2 --> 3CO2 + 2Fe 2. Calculate the percent yield of Carbon dioxide if 20.0 ...
March 19, 2015

Chemistry
What is the empirical formula for a compound that is 1.67g Ce and 4.54g I?
March 12, 2015

Math
Hello! I need help with this question. I know that I'm using the Law of Sines, but I'm confused on how to solve. I have to also round my answers to the nearest tenth for degrees and to the nearest hundredth for sides. Thanks! Given: A = 60 degrees a = 9 c = 10 Find: b...
February 24, 2015

Math
@ms sue?
February 18, 2015

Math
The function f(x) = x^2 -2x + x^1/2 is: A. A polynomial because it is continuous. B. A polynomial because it is of the form axn. C. Not a polynomial because you are subtracting 2x. D. Not a polynomial because you can’t have any fractional exponents. Is the answer D?
February 18, 2015

Physics 202
A rail gun uses electromagnetic forces to accelerate a projectile to very high velocities. The basic mechanism of acceleration is relatively simple and can be illustrated in the following example. A metal rod of mass 10.0g and electrical resistance 0.100Ω rests on ...
February 17, 2015

Physics
Sound of a certain wavelength is coming from within a room and passing through a rectangular door (a "slit"). If the width of the doorway is twice the wavelength of the sound, what is the diffraction angle è of the sound leaving the doorway? Please show me how...
February 17, 2015

Math
if 12 ft of ribbon is cut into pieces that are 2 1/4 ft long,how much ribbon is left over?
February 17, 2015

Algebra 1
On the second line where you put 3x^2+3x+1x+1 it should really be 3x^2-3x-1x+1 You just lost track of your negative
February 16, 2015

Algebra
x= -2 y= -6
February 16, 2015

math
Lee want to cut this piece of canvas into two rectangles that are 3×2 and 3×5. He wants the sum of the area of the two small rectangles to be the same as the area of the large rectangle. 6 feet across and 3 feet. Can he do this. Explain
January 20, 2015

math
Lee want to cut this piece of canvas into two rectangles that are 3×2 and 3×5. He wants the sum of the area of the two small rectangles to be the same as the area of the large rectangle. 6 feet and 3 feet. Can he do this. Explain
January 20, 2015

Math
If w is some number between 3 and 10, which of the following could be the average of the numbers 4,5,6,7,9 and w? (A)4.6 (B)5.1 (C)6.3 (D)7.9 (E)8.2
January 18, 2015

Physics
The earth has about 80 times the mass of the earth’s moon. The gravitational force exerted on the moon by the earth has what relation to the gravitational force exerted on the earth by the moon? 1. the same as 2. zero; the earth exerts a force on the moon,but the moon is ...
January 18, 2015

math
A piece of wire 34 cm long is cut into two parts. One part is to twice as long as other. how long is each part? solution pls..
January 13, 2015

math
May takes 12 hours to type a report. Her friend helps her and together they finish the job in 4 hours. How long would it take her friend had she worked alone? Representation: Equation: Solution: Conclusion:
January 12, 2015

computers
Wendy calls the help desk and reports that she is unable to access her files that are stored on the server. The network is a Windows Domain with Active Directory. Wendy is logged on locally to her workstation that runs Windows 8. You remote into her machine and you can ping ...
December 23, 2014

english 10th
How does an open question differ from a closed question?
December 16, 2014

intro to computers
You call the help desk to report a problem you are having on your computer. The technician asks you what operating system you are running. You know it is Windows 7 but you forget which version. How can you find out?
December 7, 2014

Math
Is it 168?
November 18, 2014

Math
Mr. Sugar baked a sheet cake in the shape of a rectangular prism with the deminisions of 20in by 12in by 3in high he is going to spread icing all over the cake except for the bottom what is the total surface area?
November 18, 2014

soc120
Which of the following is a claim that utilitarian might use to argue that prayer should not be allowed in school? (Points : 1)
November 4, 2014

chemistry - DrBob?
Hi! Can you tell me if I chose the right options for my chemistry homework? My answers are at the bottom. 1. Electrostatic interaction is important for which type of bond? A. ionic bond B. triple covalent bond C. single covalent bond D. double covalent bond 2. When an atom ...
November 2, 2014

Chemistry
Hi! Can you tell me if I chose the right options for my chemistry homework? My answers are at the bottom. 1. Electrostatic interaction is important for which type of bond? A. ionic bond B. triple covalent bond C. single covalent bond D. double covalent bond 2. When an atom ...
November 2, 2014

math
what is the consecutive positive odd numbers of 34,459,425?
October 27, 2014

Chemistry
1. The temperature of two substances with the same mass increases by 20 degrees Celsius. Which absorbs the most energy, the substance with the higher or lower specific heat? Explain 2. The human body is approximately 60% water. Explain how this high percentage of water helps ...
October 21, 2014

math
the number 34,459,425 is the product of several consecutive positive odd numbers. what is the greatest of these numbers?
October 18, 2014

Chemistry
If 14.23 mL of 0.203 M NaOH is required to neutralize .269 g of a monoprotic unknown acid, what is the molecular weight of the unknown acid?
October 9, 2014

ABC Company is about 1614 feet tall. How long would it take an object falling freely from the top to reach the ground? Use a = 16t^2 I would appreciate any help. ^_^
September 22, 2014

Pre-Calculus
Hi! I'm having trouble with this math question; can someone help? Thanks! :) Given the function f(x)=x^2+9, solve. a.) Find f(-3) b.) Find f(x-2)
September 16, 2014

English
What is the relationship between literature and place in these narratives "from A Journey Through Texas" and "form of Plymouth plantation"
September 15, 2014

Geometry
M is the midpoint of LM LM=3x+5 LN=5x+40 Find MN I've tried to work this out several times and am pretty sure I start it off by 3x+5=5(x)+40 but I keep getting a negative answer or a fraction for X and know that is not right. Can someone please help me?
September 11, 2014

Math plz check if correct
If a term is multiplied by zero, the resulting product will always be ______.
August 31, 2014

after i pass this test ill give u the anwers
August 29, 2014

Algebra
If you are paid a weekly base salary of \$200 plus an hourly wage of \$5.00, determine an equation for finding your weekly gross pay (P) for t hours. Specify an amount between 25 and 50 hours worked for 1 week and determine your gross pay for that week.
August 14, 2014

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