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Jack

Questions (1,128)

State the Domain and show work.y = x + 2 / x^2 - 4x - 12
1. 1 answer
2. 975 views
Find all possible radii of circle centered at (3,6) so that the circle intersects only one axis
1. 1 answer
2. 920 views
Solve:sec(x)^2= 3tanx +1 *** It is suppose to be the sqaure root of 3 but i could find the symbol so just wrote the 3 without it
1. 1 answer
2. 674 views
How many real solutions does the equation �ãx+5=x have?Please explain your answer to the best of your abilities thanks :)
1. 1 answer
2. 872 views
How many real solutions does the equation x+5=x have?Please explain your answer to the best of your abilities thanks :)
1. 2 answers
2. 445 views
As x increases from p/4 to 3p/2, the value of sin(x) :A.increases throughout the interval B.decreases at first, then increases
1. 1 answer
2. 1,135 views
Solve for x:lnx^3 - 2lnx = 1 Please try and show how you got the answer best as you can thank you :)
1. 1 answer
2. 518 views
Solve :sec^2(x)= �ã3*tanx + 1 on [0,radian-180 degrees) - couldn't find the symbol for radian on computer please try and
1. 0 answers
2. 621 views
The normal body temperature in humans ranges from 97.6 degrees fahrenheit to 99.6 degrees fahrenheit. Concert this temperature
1. 1 answer
2. 552 views
The celcius scale is devised so that 0 degrees celcius is the freezing point of water ( at 1 atmosphere of pressure) and 100
1. 0 answers
2. 666 views
A single 4p orbital can hold how many electrons?i got 6 is that correct or no? Would conducting electricity be considered a
1. 2 answers
2. 508 views
Would Conducting electricity be considered a physical or chemical property of zinci got physical but just want to make sure.
1. 0 answers
2. 476 views
Would conducting electricity be considered a physical or chemical property of ZINCi got phyiscal but just want to make sure.
1. 0 answers
2. 463 views
A single 4p orbital can hold how many electrons?i got 6 is that correct or no?
1. 0 answers
2. 355 views
Determine the coordinates of the point (xy) where the curves y=(12)x−5 and y=x2+2x−15 intersect in the third quadrant
1. 2 answers
2. 1,286 views
The strength of a cable is proportional to the square of its diameter. If a 2-cm cable will support 800kg, how much will a 3-cm
1. 1 answer
2. 1,146 views
A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concentrated
1. 1 answer
2. 3,164 views
Which of the following properties is a chemical property of phosphorus?Answer a) it burns in air b) it is a white waxy solid c)
1. 5 answers
2. 3,072 views
Convert a density of 2.74 x 103 g/L into a density with dimensions of kg/mL.please show how would this conversion be done.??
1. 1 answer
2. 371 views
A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concentrated
1. 0 answers
2. 1,241 views
Are significant figures relevant in temperature?ex: (-459 *F - 32 *F)(5 *C/ 9 *F) = -272.78 *C So would I leave my answer as
1. 1 answer
2. 444 views
Are significant figures relevant in temperature?ex: (-459 *F - 32 *F)(5 *C/ 9 *F) = -272.78 *C So would I leave my answer as
1. 0 answers
2. 449 views
find the range of the function.g(x) = 5 + (square root of) (4 - x) please show all steps.
1. 1 answer
2. 394 views
Solve the following equation.4.7 = 1.13x^2 Do i square root the 1.13x^2 first? or divide both sides by 1.13?
1. 3 answers
2. 626 views
which has greater volume?a) 1.0 kg of feathers or 1.0 kg of lead b) 100 g of gold or 100 g of water c) 1.0 L of copper or 1.0 L
1. 2 answers
2. 2,716 views
write 480 ina) 1 significant figure b) 2 significant figures c) 3 significant figures d) 4 significant figures
1. 3 answers
2. 4,879 views
However, misfortune and trouble did not stop Ray Charles.Subject=misfortune, trouble Verb= did stop
1. 1 answer
2. 271 views
A pair of fair dice is rolled. Let E denote the event that the number landing uppermost on the first die is a 3, and let F
1. 1 answer
2. 5,078 views
solve by multiplication-7/8x = -9/10
1. 1 answer
2. 418 views
Consider the function defined below.y = 2t3 - 4t2 + 3 (a) Calculate the second derivative. y '' = (b) Calculate the third
1. 1 answer
2. 543 views
Total plasma volume is important in determining the required plasma component in blood replacement theory for a person
1. 2 answers
2. 649 views
Assuming that the heights of college women are normally distributed with mean 62 inches and standard deviation 3.5 inches, what
1. 3 answers
2. 2,255 views
x=3-0. What percentage of the area under the normal curve lies to the left of ( 16.0% 15.80% 2.50% 0.50% having trouble with
1. 1 answer
2. 510 views
What similarities and differences are there between functions and linear equations?
1. 2 answers
2. 580 views
What is the standard heat of reaction (Delta H^0) for the decomposition of hydrogen peroxide?2H2O2 (l) ==> 2H2O (l) + O2(g)
1. 0 answers
2. 885 views
What is the standard heat of reaction (Delta H^0) for the decomposition of hydrogen peroxide?2H2O2 (l) ==> 2H2O (l) + O2(g)
1. 0 answers
2. 1,186 views
Using calories, calculate how much heat 32.0g of water absorbs when it is heated from 25.0 degrees C to 80.0 degrees C. How many
1. 2 answers
2. 3,921 views
Using calories, calculate how much heat 32.0g of water absorbs when it is heated from 25.0 degrees C to 80.0 degrees C. How many
1. 1 answer
2. 719 views
Using calories, calculate how much heat 32.0g of water absorbs when it is heated from 25.0 degrees C to 80.0 degrees C. How many
1. 1 answer
2. 651 views
Which of the following compounds will melt ice at the lowest temperature? Sucrose, sodium chloride, or magnesium chloride?
1. 1 answer
2. 448 views
Answer the following question about copper (II) sulfate pentahydrate:a)how much water (in g) is there in 10.0 g of the compound
1. 1 answer
2. 748 views
A)250 g of LiBr is dissolved in 200g of water 100 degrees C. The solution is then cooled to 20 degrees C. How much precipitate
1. 1 answer
2. 580 views
What were the differing politucal and economic systems between the US and Soviet Union that helped lead to the Cold War?I know
1. 0 answers
2. 641 views
What is the freezing point of each solution?a)1.40mol Na2SO4 in 1750 g H2O Are these the right steps? 1.40mol Na2SO4 / 1.75kg =
1. 1 answer
2. 3,044 views
Determine the freezing points of each 0.20m aqueous solution.a)K2SO4 b)CsNO3 c)Al(NO3)3
1. 1 answer
2. 2,182 views
What is the freezing point of each solution?a)1.40mol Na2SO4 in 1750 g H2O b)0.060 mol MgSO4 in 100g H2O
1. 1 answer
2. 1,511 views
How many grams of K2SO4 would you need to prepare 1500 g of 5.0% K2SO4 (m/m) solution?
1. 2 answers
2. 7,367 views
Given that tan(pi/2) = a. Express tan(x) and sin(x) in terms of a. Hint: Use the fact that x = 2.(pi/2)
1. 2 answers
2. 425 views
Which of the following substances dissolve to a significant extent in water? Explain your answer in terms of polarity.a) CH4 b)
1. 1 answer
2. 1,772 views
The cost principle requires that when assets are acquired, they be recorded at
1. 1 answer
2. 1,718 views
The molecules water (H2O) and methane (CH4) have similar masses, but methane changes from a gas to liquid at -161 degrees C.
1. 1 answer
2. 1,044 views
What happened to Andrew Jackson when he was eight years old?
1. 6 answers
2. 544 views
In a reaction chamber, 3.0mol of aluminum is mixed with 5.3mol Cl2 and reacts. The reaction is described by the following
1. 1 answer
2. 4,706 views
If 7.24 kJ of heat is applied to a 952 g block of metal, the temperature increases by 10.7 degrees Celsius. Calculate the
1. 1 answer
2. 1,216 views
Write the 12 mole ratios that can be derived from the equations for the combustion of isopropyl alcohol.2 C3H7OH(l) + 9 O2(g)
1. 1 answer
2. 3,643 views
Hi, I've been having issues with solving this problem. Could anyone help?Two blocks, of masses M = 2.0 kg and 2M are connected
1. 2 answers
2. 787 views
Is 2HCl soluble in water?Is BaSO4 soluble in water?
1. 1 answer
2. 501 views
Identify the precipitate formed when solutions of these compounds are mixed.H2SO4 + BaCl2 ==> So when you do the double
1. 2 answers
2. 2,830 views
How do you balanceAl(OH)3 --> Al2O3 + H2O Why does the OH decompose into O3 and H2O??
1. 1 answer
2. 503 views
Classify each reaction and balance the equations.Al(OH)3 ==> Al2O3 + H2O
1. 1 answer
2. 1,941 views
Complete and balance this decomposition reactionHI ==> is this reaction HI ==> H + I ? or... HI ==> H2 + I2 ? why?
1. 1 answer
2. 1,130 views
Complete and balance this equation for a combination reaction.Be + O2 ==> Would it be Be + O2 ==> BeO2 ? or... 2Be + O2 ==> 2BeO
1. 1 answer
2. 2,906 views
An electric field exerts a force of 3.00 E-4 N on a positive test charge of 7.20 E-4 C. The magnitude of the field at the
1. 1 answer
2. 1,300 views
Solid aluminum carbonate decomposes to form solid aluminum oxide and carbon dioxide gas.Is Al2(CO3)3 ==> Al2O3 + CO2 the right
1. 2 answers
2. 11,038 views
Balance the following equations.A) SO2 + O2 --> SO3 B)Fe2O3 + H2 --> Fe +H2O C)P + O2 -->P4O10 D)Al + N2 --> AlN
1. 1 answer
2. 1,106 views
Write and balance equations for the following reactions.A)Iron metal and Chlorine gas react to form solid iron(III) chloride.
1. 3 answers
2. 7,488 views
Write Skeleton equations for these reactions.A) Heating Copper(II) sulfide in the Presence of diatomic oxygen produces pure
1. 2 answers
2. 3,865 views
which has the highest lattice energy BaO or SrO
1. 4 answers
2. 3,067 views
Compound A contains 1.75g nitrogen and 3.99g oxygen. Compound B contains 19.6g nitrogen and 56.0g oxygen. Are compounds A and B
1. 1 answer
2. 532 views
Find the molar mass of Chromium (III) Hydrogen Phosphate. Also, what is the chemical formula for this molecule?
1. 1 answer
2. 733 views
The mass of twenty-three dozen pencils is 1.496 kg. What is the mass of 1 pencil?
1. 1 answer
2. 560 views
How many neon atoms are there in five moles?
1. 1 answer
2. 852 views
How many carbon atoms are there in 150.0 g Glucose? (Glucose is C6H12O6, molar mass = 180.16 g/mol)
1. 1 answer
2. 2,418 views
Convert 12 fluid ounces liters. (1 fl. oz = 29.57 cm^3)
1. 1 answer
2. 397 views
Which of the following are empirical formulas?A) Ribose (C5H10O5) B) Ethyl Butyrate (C6H12O2) C) Chlorophyll (C55H72MgN4O5) D)
1. 1 answer
2. 3,264 views
How many grams of oxygen are there in 100.0 grams of water? What percentage of the mass of water is oxygen?
1. 1 answer
2. 535 views
Find the number of K atoms, C atoms, and O atoms in 95.5g of K2Cr2O7. (Potassium 2, Chromium 2, Oxygen 7).
1. 1 answer
2. 506 views
All of the following account for nativist sentiment against the New immigrants of the late 19th century EXCEPT that the
1. 4 answers
2. 3,402 views
I added 40 mL of NaOH 1N to rise the pH of 10g teriphitalic acid from 5.3 to 6.3, so if I adde the same 40 mL of NaOH to 12g of
1. 1 answer
2. 358 views
why does magnesium dissolve quicker in strong acid
1. 0 answers
2. 358 views
A car with a mass of 100 kg, with initial v = 1 m/s, has 60 Joules of energy added for 50 m. What is the final velocty?I'm using
1. 3 answers
2. 423 views
how do i compute a problem like4/7 * 2/3 * 6
1. 1 answer
2. 361 views
Find the exact value of sec 60°tan135°-cot60°sin60°
1. 1 answer
2. 831 views
What does conduissez mean in french?
1. 2 answers
2. 905 views
Mr. Havel bought a car for $2400 and sold it for $2700. what was the percent of profit for Mr. Havel in selling the car?
1. 4 answers
2. 2,509 views
How does the portuguese man of war contribute to science?
1. 0 answers
2. 383 views
I need help with an inverse function. If f(x)=3-x, I find the inverse function to be: x=3-y which is the same as y=3-x, same as
1. 2 answers
2. 387 views
Suppose David Ortiz hits a home run which travels 361. feet (110. m). Assuming it left the bat at 50.°, how fast was it hit?
1. 1 answer
2. 1,152 views
1)When conditioning takes place, behavior is associated with?a. ideas b. stimuli, consequences, or both c. events in the
1. 3 answers
2. 591 views
1) The type of learning that involves reasoning, problem solving, language, memory, association of ideas, and other mental
1. 2 answers
2. 852 views
what are the chemical properties of scandium
1. 1 answer
2. 404 views
if an obejct has an horizontal acceleration of -0.51 m/s squared and vertical acceleration of -7.683 m/s squared, what is the
1. 1 answer
2. 416 views
Do you help with accounting homework?
1. 2 answers
2. 445 views
An object traveling at 5.0 m/s East has a mass of 6.0 kg. What is the magnitude of the object's momentum?I am not sure what the
1. 1 answer
2. 868 views
How can you use study techniques recommended for your personality type and strongest intelligence(s)to function best in distance
1. 1 answer
2. 988 views
Is the Board of Governors influenced by Political Consideration?
1. 1 answer
2. 391 views
(4 x 1/2 + .87 + 17/16 + 22a -7.64 x 0.19 x 0 -1.87 + 3.1416) / 13
1. 1 answer
2. 338 views
(6/7 x 4p + 3/4 - 8/19) (5p - 9x .88 x 0 /4) x 10%
1. 0 answers
2. 263 views
(4 x 1/2 + .87 + 17/16 = 22a -7.64 x 0.19 x 0 -1.87 + 3.1416) / 13
1. 1 answer
2. 397 views
I have $100.00 dollars to spend to buy 100 animals. Cows cost $50.00 each, sheep cost $3.00 each, pigs cost $2.00 each and
1. 1 answer
2. 1,348 views

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