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Questions Asked on February 24, 2014

In most geometry courses, we learn that there's no such thing as "SSA Congruence". That is, if we have triangles ABC and DEF
1. 1 answer
2. asked by John
3. 3,022 views
The passenger section of a train has width 2x-7, length 2x+3 and height x-2 with all dimensions in metres. Solve a polynomial
1. 1 answer
2. asked by Kizzy
3. 3,191 views
If you use the lmax during the calibration plot (Beer's plot) and then change to some other wavelength for the measurement of
1. 1 answer
2. asked by Kelsey
3. 581 views
If your heating generates soot on the bottom of the crucible, what is the origin of the soot? How will this soot collection
1. 2 answers
2. asked by Kelsey
3. 1,121 views
How many grams of AL(NO3)3 are produced when 23.5 grams of Aluminum react with 133 mL of 6.5M HCL?
1. 0 answers
2. asked by Katie
3. 425 views
4. A force of 48 N is required to start a 7.8 kg box moving across a horizontal concrete floor.(a) What is the coefficient of
1. 1 answer
2. asked by Rian
3. 1,363 views
If 1.87 g of acetic acid(CH3CO2H) reacts with 2.31 g of isopentyl alcohol(C5H12O) to give 2.96 g of isopentyl acetate(C7H14O2),
1. 0 answers
2. asked by robert
3. 898 views
5. What is the maximum acceleration a car can undergo if the coefficient of static friction between the tires and the ground is
1. 1 answer
2. asked by sean
3. 590 views
What is the zero of the function x^2-18x-4
1. 1 answer
2. asked by Shun
3. 557 views
6. Drag-race tires in contact with an asphalt surface have a very high coefficient of static friction. Assuming a constant
1. 1 answer
2. asked by SHAWN
3. 1,226 views
If 16.0 mL of 8.5 ✕ 10-2 M HClO4 is added to 22.0 mL of 7.6 ✕ 10-4 M KOH, what is the pH of the solution?
1. 0 answers
2. asked by Elizabeth
3. 343 views
A 7 kg purse is dropped from the top of the Leaning Tower of Pisa and falls 53 m before reaching the ground with a speed of 17
1. 0 answers
2. asked by shanna
3. 729 views
h(t) = -1/3t^3 + 4t^2 + 20t +2, f or >- 2
1. 1 answer
2. asked by Bo
3. 620 views
Which of the following substances can act as a Bronsted base in aqueous solution? (Select all that apply.)H2O NH3 H2 CH3NH2 O2
1. 1 answer
2. asked by Elizabeth
3. 1,831 views
If f (3) = 9 and f ´(3) = 4, find the tangent line to the graph of f when x = 3.y = 4x - 3 y = 4x + 21 y = 9x - 23 y = 9x + 31
1. 1 answer
2. asked by liana
3. 434 views
Which of the following substances can act as a Bronsted acid in aqueous solution? (Select all that apply.)NH41+ H2 O2 C4H10
1. 1 answer
2. asked by Julie
3. 669 views
A block with a mass of 126 kg is pulled with a horizontal force of F applied across a rough floor. The coefficent of friction
1. 1 answer
2. asked by cris
3. 651 views
a. What is the pH of a 6.1 ✕ 10-5 M Ca(OH)2 solution?b. What is the H3O+ concentration of the solution? I just cant figure out
1. 3 answers
2. asked by Ana
3. 413 views
If your heating generates soot on the bottom of the crucible, what is the origin of the soot? How will this soot collection
1. 1 answer
2. asked by Maggie
3. 1,774 views
If you use the lmax during the calibration plot (Beer's plot) and then change to some other wavelength for the measurement of
1. 1 answer
2. asked by Kelsey
3. 554 views
A -kg block is initially at rest on a frictionless horizontal surface. It is pulled with a constant horizontal force N. How long
1. 0 answers
2. asked by cristy
3. 863 views
A large stone block has been loaded in the bed of a dump truck. The bed is slowly raised until it makes an angle of 30 degrees
1. 2 answers
2. asked by chris
3. 688 views
i don't understand what they are asking me to do when they give me a quhat looks like this (write acute,right,or obtuse for each
1. 1 answer
2. asked by olivia
3. 494 views
A 500. mL sample of hydrogen gas is collected over water at 27 °C. The pressure of the hydrogen and water vapor mixture is 78.5
1. 2 answers
2. asked by Gabby
3. 766 views
Though mAny people doubted that the new program would do any real good, it was a very wholesome development
1. 0 answers
2. asked by Anonymous
3. 440 views
The half-life for the first-order conversion of A to B is 56.5 hours. How long does it take for the concentration of A to
1. 1 answer
2. asked by Kristen
3. 1,798 views
how do I calculate theoretical yield?
1. 1 answer
2. asked by Anonymous
3. 506 views
Where is Zhengzhou China located? Is it a urban city in the middle of China?
1. 1 answer
2. asked by Blaze
3. 555 views
Write 14,060,000,000,000 in scientific notation
1. 1 answer
2. asked by Gio
3. 553 views
An architect has allocated a rectangular space of 589ft^2 for a square dining room and a 12ft wide kitchen. Find both the width
1. 1 answer
2. asked by Pam
3. 875 views
Please!!I know I posted this already but there is a typo. There are 49 mice in a pet shop. 30 mice are white. 27 mice are male.
1. 1 answer
2. asked by Anonymous
3. 594 views
A particle is moving along the curve y = 4x^2 + 1 in such a way that the y coordinate is increasing at a rate of ½ units per
1. 1 answer
2. asked by Carlos
3. 974 views
you and your friend are riding on a helicopter that is traveling west at a speed of 10 meters per second. You throw a baseball
1. 1 answer
2. asked by rafael
3. 473 views
A football is thrown from the edge of a cliff from a height of 22 m at a velocity of 18 m/s [39degrees above the horizontal]. A
1. 2 answers
2. asked by Louis
3. 4,075 views
A speed skater goes around a turn that has a radius of 35 m. The skater has a speed of 14 m/s and experiences a centripetal
1. 0 answers
2. asked by Anonymous
3. 589 views
Given these standard reduction potentials at 25 C1. Cr3+ + e- ===> Cr2+ E1=-0.407 V 2. Cr2+ + 2e- ===> Cr(s) E2=-0.913 V
1. 3 answers
2. asked by Bridget
3. 1,439 views
My teacher went over it really fast and now I'm just really confused about how to do my homework =(Calculate the cell potential
1. 1 answer
2. asked by Bridget
3. 850 views
The cell diagram for the lead-acid cell that is used in automobile and truck batteries isPb(s) l PbSO4 (s) l H2SO4 (aq) l
1. 3 answers
2. asked by Bridget
3. 3,223 views
the line passes through the points s(6,6) and T(0,-2) determine the gradient of the linethe equation of the line the midpoint of
1. 3 answers
2. asked by shanise
3. 2,929 views
You have saved $15,000 for down payment on a car costing $55,000, and plan to finance the rest with a 5-year loan. The dealer is
1. 3 answers
2. asked by sakiss
3. 670 views
The number of tickets sold each day for an up coming performance of Handel,s Messiah is given by N(x)=-0.4x^2+8x+11, where x is
1. 1 answer
2. asked by Pam
3. 461 views
A 3.3 kg ball strikes a wall with a velocity of8.4 m/s to the left. The ball bounces oﬀ with a velocity of 6.8 m/s to the
1. 0 answers
2. asked by michael
3. 532 views
A penny is placed at the outer edge of a disk (radius = 0.119 m) that rotates about an axis perpendicular to the plane of the
1. 0 answers
2. asked by Anonymous
3. 721 views
Find the total profit, the maximum value of the total profit, and the value of x at which it occurs when the revenue is given by
1. 1 answer
2. asked by Pam
3. 463 views
A gas at 54◦C occupies 4.54 L. At what tem- perature will the volume be 3.04 L, assuming the same pressure?
1. 1 answer
2. asked by john
3. 459 views
what mass(g) of NH3 must be dissolved in 475g of methanol to make a 0.25m solution
1. 2 answers
2. asked by Anonymous
3. 1,300 views
I need an outline for the political embattlement for the aged (exp.,medicaid, medicare, disability, welfare, supplemental
1. 1 answer
2. asked by Debbie
3. 403 views
x^2-10x+y^2=k is ta circle tangent to the y-axis for what real number k?
1. 1 answer
2. asked by qx
3. 313 views
Construct a 95% confidence interval for the population mean. 5. Airfare A random sample of airfare prices (in dollars) for a
1. 0 answers
2. asked by anna
3. 501 views
The activation energy of a certain reaction is 34.9kJ/mol . At 23 ∘C , the rate constant is 0.0190s−1. At what temperature
1. 3 answers
2. asked by Kat
3. 747 views
when y varies directly at the square of X, the variation equation is written y= kx square, where K is constitution(a) given that
1. 1 answer
2. asked by shanise
3. 1,418 views
Show all steps evaluate the expression for the given value of the variable 5a+5b,a=-6,b=-5thanks
1. 2 answers
2. asked by Lucky
3. 1,030 views
y=x^2+6x+k intersects y=-x^2-6x-k at just one point. Find k
1. 1 answer
2. asked by bx
3. 343 views
Construct a 95% confidence interval for the population mean. 5. Airfare A random sample of airfare prices (in dollars) for a
1. 1 answer
2. asked by anna
3. 586 views
(a) What is the pH of a 6.1 ✕ 10-5 M Ca(OH)2 solution?(b) What is the H3O+ concentration of the solution? I already know the
1. 1 answer
2. asked by Ana
3. 488 views
Solve the inequality graph the solution set 26+6b>2(3b+4) answers are. All real numbers, b<11/2, b>11/2, no solution thanks
1. 1 answer
2. asked by Lucky
3. 3,102 views
A woman is riding a Jet Ski at a speed of 20 m/s and notices a seawall straight ahead. The farthest she can lean the craft in
1. 0 answers
2. asked by Anonymous
3. 647 views
A jet flying at 138 m/s banks to make a horizontal circular turn. The radius of the turn is 3810 m, and the mass of the jet is
1. 0 answers
2. asked by Anonymous
3. 553 views
Is the inequality sometimes,always,never,true -2(2x+9)>-4 x+9
1. 2 answers
2. asked by tina
3. 1,061 views
A gaseous hydrogen and carbon containing compound is decomposed and found to contain 85.63% C and 14.37% H by mass. The mass of
1. 1 answer
2. asked by Simone
3. 2,604 views
CaO has a face-centered cubic unit cell in which the O2- anions occupy corners and face centers, while the cations fit into the
1. 0 answers
2. asked by hershi
3. 837 views
The total mass of three identical boxes is 28.05 kilograms. What is the mass, in kilograms, of each box?
1. 1 answer
2. asked by Jena
3. 569 views
How does this passage affect you?“Lief was shown a pocketbook and lamp-shades made from human skin for Ilse Kich, wife of the
1. 4 answers
2. asked by Ian
3. 630 views
Fill in the blanks with the appropriate raw score, z score, t scores . Mean =50, sd = 5. Raw 35
1. 1 answer
2. asked by Saf
3. 660 views
My motorcycle has a capacity of 4.5 gal of gasoline. If I combust all of the octane to power my motorcycle, what is the volume
1. 6 answers
2. asked by tricia
3. 676 views
1. What was described as the ' hardest work " slaves did ? ( 1point )A. work in the rice fields B . Work in the tobacco fields
1. 2 answers
2. asked by lovey
3. 1,085 views
A 0.670 g sample of impure Al2(SO4)3 reacts with excess BaCl2. If the sample produces 0.760 g of BaSO4, what is the mass percent
1. 1 answer
2. asked by Tevin
3. 662 views
If 16.0 mL of 8.5 ✕ 10-2 M HClO4 is added to 22.0 mL of 7.6 ✕ 10-4 M KOH, what is the pH of the solution?
1. 1 answer
2. asked by Jessibell
3. 377 views
Solve the problem by writing an inequality in the perimeter of a rectangular picture frame must be less than 180in. and width is
1. 2 answers
2. asked by tina
3. 625 views
wt can i study with maths and physical sciences and life sciences besides engeenering thngs ?please help
1. 5 answers
2. asked by masaka cindy
3. 691 views
Which of the following substances would be expected to be the strongest electrolyte (best conductor of electricity) in solution
1. 1 answer
2. asked by sara
3. 1,470 views
In the net ionic equation for the neutraliza- tion reaction between hydroﬂuoric acid (HF) and sodium hydroxide (NaOH), the HF
1. 1 answer
2. asked by sara
3. 565 views
Copper(II) chloride and lead(II) nitrate react in aqueous solutions by double replacement. Write the balanced chemical equation,
1. 3 answers
2. asked by jan
3. 3,864 views
Ryan was trying to figure out how many column millimeters his advertisement would require. He wanted to sell his motorcycle as
1. 1 answer
2. asked by Ashton
3. 499 views
An aqueous solution is analyzed and found to contain potassium ions and sulﬁte ions. Write the equation for the dissolution of
1. 1 answer
2. asked by lebanon
3. 744 views
A very long wire carries an I1 = 7.80 A current along the x axis and another long wire carries an I2 = 5.13 A current along the
1. 1 answer
2. asked by Amanda
3. 639 views
In an emission spectroscopy, when trying to identify the most intense emission line for an ion, does one have to identify it
1. 1 answer
2. asked by Sandy
3. 434 views
A planet has a mass of 5.71 × 1023 kg and a radius of 3.93 × 106 m. (a) What is the acceleration due to gravity on this
1. 0 answers
2. asked by lawrenvceshrenk
3. 729 views
Does anyone know if north central is hyphenated AP style? my book doesn't really specify.
1. 1 answer
2. asked by blaze
3. 776 views
Find the APR, or stated rate, in each of the following casesEAR: 12.4 semianually 13.3 monthly 11.0 weekly 14.7 infintely
1. 1 answer
2. asked by Jade
3. 730 views
If I want to prepare 5.0 liters of a 0.25 M solution of NH4Cl, how many grams of the salt should I weight out?
1. 2 answers
2. asked by Krew
3. 2,348 views
How do you see the ideas in the Declaration compared to typical Medieval European?
1. 0 answers
2. asked by Sarah
3. 368 views
Sighting the top of a building, a surveyor measured the angle of elevation to be 60°. The measurement is taken 200 feet from
1. 1 answer
2. asked by sean
3. 730 views
Determine [Zn2 ], [CN–], and [HCN] in a saturated solution of Zn(CN)2 with a fixed pH of 2.640. The Ksp for Zn(CN)2 is 3.0 ×
1. 1 answer
2. asked by Sonya
3. 870 views
An investor must invest a total of $15,000 in two accounts, one paying 4% annual interest, and the other 3%. If he wants to earn
1. 1 answer
2. asked by Mila
3. 924 views
which of the following illustrates conduction as a mode of heat transfer 1 pointa microwave oven produces electromagnetic waves
1. 15 answers
2. asked by Denna
3. 3,386 views
using the ideal gas law or the combined gas law,why does the air pressure inside the tires on my motorcycle increases during the
1. 1 answer
2. asked by tricia
3. 600 views
A small block has a horizontal velocity of 4.00 m/s as it slides off the edge of a table. The table is a vertical distance of
1. 1 answer
2. asked by sunny
3. 2,215 views
the African plate is moving toward the Eurasian plate at a rate few centimeters per year. how will this are change in 100
1. 17 answers
2. asked by Denna
3. 2,773 views
The experiment done in lab is repeated, using a ball that has unknown mass m. You plot your data in the form of f 2 versus M/L,
1. 1 answer
2. asked by sunny
3. 2,088 views
the American emphasis on the pursuit of happiness
1. 2 answers
2. asked by Ron
3. 591 views
Please, I am struggling with these. Can someone help me by answering them? Or at least assisting me to? Thank you in advance to
1. 0 answers
2. asked by Anonymous
3. 590 views
if a=4, b=-2, c=3simplify 4c square*3c4/c3 (b)2(3x+1)-(x+2)
1. 1 answer
2. asked by shanise
3. 314 views
Consider the function f(x)=x^n for positive integer values of n.(a) For what values of n does the function have a relative
1. 1 answer
2. asked by helga
3. 652 views
How would playing a game of soccer, baseball, or basketball be different if inertia didn’t exist?
1. 2 answers
2. asked by anekfoxx
3. 600 views
Kindly unscramble:1:tuteauaewr ibeifslh 2:geaperioitrdspaw sagnhabi neod 3:enaednenetor eyimrw
1. 1 answer
2. asked by vikas
3. 375 views
Can someone explain to me the difference between angry about and angry for (when a verb follows)?I think "about" is used in
1. 0 answers
2. asked by Frank
3. 732 views
what is the net difference in angle made by hour and minute hand when time moves from 1:15 pm to 1:16 pm
1. 1 answer
2. asked by bishal
3. 458 views
If 3.943 g of anhydrous salt remains after heating 5.00 g of CuCℓ2·xH2O, determine the number of molecules of water of
1. 1 answer
2. asked by Roxanne
3. 725 views
I need help unscrambling these letters to form two words: inenidj tcain They go along with the phrase ______ _____and Persia.
1. 3 answers
2. asked by Jack
3. 383 views

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