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Marissa

Questions (182)

how do u find the mean. median and mode in math
1. 1 answer
2. 331 views
Properties of chlorine, iodine and their compounds are compared.Property Q for chlorine is smaller than for iodine. What is
1. 2 answers
2. 1,885 views
Two properties of non-metallic elements and their atoms are as follows.property 1 has an oxide that can form a strong acid in
1. 1 answer
2. 983 views
1. Cube: (s = side)a. s = 5 ft b. s = 6 in c. s = 12 mm
1. 0 answers
2. 661 views
how much sales tax will justin pay in a computer priced at 1,723.42 if the sales tax rate is 9.25 percent
1. 2 answers
2. 396 views
In the formula A=P(1+r) t , p is the principle, r is the annual rate , A is the amount of years . An account waning 4% has a
1. 1 answer
2. 350 views
Recent research found that vulnerable youth who participate in positive extracurricular activities in high school were more
1. 2 answers
2. 633 views
The sales tax rate for the state of Washington was 8.3%.What is the state sales tax on a $4,300 car in Washington? What is the
1. 1 answer
2. 687 views
Write each rate as a fraction in lowest terms15 feet in 30 seconds
1. 2 answers
2. 2,677 views
Find a formula for a function of the form y=bxe−ax with local maximum at (0.5,0.3679). y=
1. 1 answer
2. 853 views
Start at 500,crate a pattern that subtracts 4 from each number.Stop when you have 5 numbers
1. 1 answer
2. 430 views
Consider the reaction2H2O(g) → 2H2(g) + O2(g) ΔH = +483.60 kJ/mol at a certain temperature. If the increase in volume is 42.7
1. 2 answers
2. 6,798 views
A scientist has 37 grams of a radioactive substance that decays exponentially. Assuming k=-0.3,how many grams of radioactive
1. 1 answer
2. 1,360 views
The growing popularity of newspapers, magazines, and books in the United States during the 19th century contributed to which of
1. 5 answers
2. 915 views
The position of a bucket falling down a well can be represented by the function h(t)=-16t^{2} where t is time in seconds and
1. 4 answers
2. 521 views
Write the symbol for the elements that fit the following descriptions1. 10 electrons in each -3 ion 2. 18 electrons in each +2
1. 1 answer
2. 968 views
A rectangular tank with a square base, an open top, and a volume of 4,000 ft cubed is to be constructed of sheet steel.
1. 1 answer
2. 2,190 views
How many moles of hydrogen from when 10 moles of methane react completely?
1. 1 answer
2. 495 views
How many moles of water vapor react to yield 546.234 moles of hydrogen?
1. 1 answer
2. 588 views
Write a conversion factor that could be used to convert between moles of methane and moles of hydrogen
1. 1 answer
2. 966 views
What is the maximum mass of cobalt (II) phosphate that will precipitate from a solution prepared by adding an excess of K3PO4
1. 1 answer
2. 587 views
When coal is burned, the sulfur it contains is converted into sulfur dioxide. This is SO2 is a serious pollutant, so it needs to
1. 5 answers
2. 1,146 views
A precipitation reaction takes place when a water solution of potassium phosphate, K3PO4, is added to a water solution of cobalt
1. 1 answer
2. 1,489 views
Potassium permanganate, KMnO4, a common oxidizing agent, is made from various ores that contain manganese (IV) oxide, MnO2. The
1. 1 answer
2. 1,003 views
Potassium permanganate, KMnO4, a common oxidizing agent, is made from various ores that contain manganese (IV) oxide, MnO2. The
1. 1 answer
2. 837 views
List 10 careers in home economics
1. 19 answers
2. 6,916 views
Which one of the compond are covalentHF RbF LiF NaF
1. 1 answer
2. 1,836 views
Calculate molarity of KNO3 solution if 69 g of salt are dissolved into 250 mL of solution
1. 1 answer
2. 729 views
A spring scaled is used to measure the weight of a object on the earth. The scale on the moon would read what?
1. 1 answer
2. 421 views
A spring scaled is used to measure the weight of a object on the earth. The scale on the moon would read what?
1. 1 answer
2. 466 views
A spring scaled is used to measure the weight of a object on the earth. The scale on the moon would read what?
1. 1 answer
2. 557 views
Given: BA is congruent to DC; BE is perpendicular to AC; DF is perpendicular to AC.Prove: BE is congruent to DF. The image is of
1. 1 answer
2. 728 views
A recipe calls for 2/3 cups chocolate but I'm only making a fourth of the batch how much chocolate what I need
1. 1 answer
2. 460 views
find the percentile rank of 4.6 out of these numbers:1.8, 2.5, 3.9, 4.6, 4.7, 4.8, 4.8, 4.9
1. 0 answers
2. 436 views
Would someone be willing to proof read my English essay? I proof read it but I don't know if I got all the mistakes.
1. 5 answers
2. 698 views
How would the addition of hydrogen gas at constant temperature and volume effect rate=k[h2][I2]?
1. 1 answer
2. 901 views
What is the order of rate = k[NO]2[Br2].2nd order?
1. 1 answer
2. 544 views
Can someone help with this one? Half life of 55Cr is about 2 hours. A sample of the isotopes delivered from the reactor to lab
1. 1 answer
2. 1,861 views
What would the unit be if you calculate the rate when A= 0.30 M and b= 0.30 M. I have the calculation done right and its 1.57 x
1. 2 answers
2. 457 views
Does a k constant have a unit?
1. 2 answers
2. 410 views
At 20 degrees celcius the vapor pressure of toluene is 22 mmhg and that of benzene is 75 mmhg. Assume an ideal solution,
1. 1 answer
2. 2,155 views
24.0 mL of a 2.4 M silver nitrate is mixed with 32.0 mL of 2.0 M sodium.Calculate the mass of precipitae formed. Calculate the
1. 2 answers
2. 546 views
16.5 mL of 2.5 M sodium sulfate is mixed with 35.5 mL of 4.5 M sodium nitrate. What is the concentration of all ions in the new
1. 1 answer
2. 442 views
Find the electric field at a point midway between 2 charges of +40.0e-9 C and +60.0E-9 C separated by a distance of 30.0 cm.My
1. 2 answers
2. 3,818 views
I am having difficulties trying to do rational expressions. I have to use the words Domain, Excluded Value, Set, Factor, and
1. 1 answer
2. 518 views
A baseball player slides into third base with an initial speed of 3.8m/s. If the coefficient of kinetic friction between the
1. 2 answers
2. 1,576 views
An equilibrium is dynamic.true or false
1. 1 answer
2. 1,078 views
At t = 0 s a flywheel is rotating at 20 rpm. A motor gives it a constant acceleration of 1 rad/s^2 until it reaches 100 rpm. The
1. 0 answers
2. 659 views
Two canoeists start paddling at the same time and head toward a small island in a lake. Canoeist 1 paddles with a speed of
1. 0 answers
2. 1,434 views
What number is 1,000,000 greater than 337,676
1. 6 answers
2. 1,959 views
What did the founding fathers of the United States create in order to ensure that one person did not ever have too much power in
1. 1 answer
2. 575 views
During the week ended May 15, 2013, Scott Fairchild worked 40 hours. His regular hourly rate is $31. Assume that his earnings
1. 1 answer
2. 815 views
What were the negative impact or effects of the Incas and Aztecs?Thank You
1. 4 answers
2. 577 views
Has the effort of Westerners to aid the rest of the world done more good than harm?Its a opinon but i would like a answer
1. 1 answer
2. 465 views
I have 8 marbles: 3 blue, 1 green, 4v reds. What is the probability of selecting a blue marble twice with replacement and twice
1. 1 answer
2. 485 views
When Christy made tortillas for the first time, she used all the dough to make 10 tortillas. After making quesadillas, she
1. 3 answers
2. 586 views
A man at point A directs his rowboat due north toward point B, straight across a river ofwidth 100 m. The river current is due
1. 1 answer
2. 1,471 views
What events in hitler's childhood lead him to become a dictator?Please help and thank you so much.
1. 3 answers
2. 451 views
If f(x)=2x+1 and g(x)=3x-5, find f(g(2)).
1. 2 answers
2. 359 views
A support wire runs from the top of a tower to the ground. If the tower is 1200 feet tall and the wire is attached to the ground
1. 6 answers
2. 1,487 views
Your space ship has docked at a space station above Mars. The temperature inside the space station is 24oC at a pressure of
1. 1 answer
2. 1,300 views
Find 2 consecutive integers, the smaller a perfect cube and larger a perfect square.
1. 3 answers
2. 631 views
I'm struggling some with the us of trigonomic properties.The problem is integral sin(2x)sec(x) dx and I don't understand how
1. 1 answer
2. 474 views
The lower frequency limit for human hearing is usually considered to be 20.0 Hz. (a) What isthe speed of sound in m/s if the air
1. 1 answer
2. 636 views
The lower frequency limit for human hearing is usually considered to be 20.0 Hz. (a) What isthe speed of sound in m/s if the air
1. 1 answer
2. 4,171 views
At what age is it typical for a child to begin testing the word no
1. 1 answer
2. 428 views
i need an example problem using log10E=11.4+1.5mwhen E means radiated energy and m is means magnitude. the log has a base of 10
1. 0 answers
2. 396 views
A bicycle trail is 7miles and 880 yards long.How many total yards is the bicycle trail
1. 3 answers
2. 700 views
0.350L of 0.160 M NH3 is added 0.140 L of 0.100 M MgCl2 .How many grams of (NH4)2SO4 should be present to prevent precipitation
1. 3 answers
2. 1,776 views
At the moment car A is starting from rest and accelerating at 5.0 m/s2, car B passes it moving at a constant speed of 45m/s. How
1. 3 answers
2. 953 views
Gonorrhea is spread through contact with the ________.A. Anus, , Mouth, Skin B. , Anus, Mouth, C. , Skin, , Anus D. Mouth, , ,
1. 4 answers
2. 732 views
Assuming that f and g are functions differentiable at a (though we do not know their formulas). Prove that f +g is
1. 1 answer
2. 652 views
A dog running in the +y-direction at 6.0 hears its owner call from behind, and 2.7 later it's running at the same speed in the
1. 1 answer
2. 659 views
F(x)=|x-5| evaluate the following limitslim x->5- ( f(x)-f(5))/(x-5) lim x->5+ ( f(x)-f(5))/(x-5)
1. 0 answers
2. 918 views
Two arrows are shot vertically upward. The second arrow is shot after the first one, but while the first is still on its way up.
1. 1 answer
2. 679 views
A rock is dropped from a sea cliff and the sound of it striking the ocean is heard 3.9 s later. If the speed of sound is 340
1. 0 answers
2. 507 views
What happens to approximately 60% of the energy released during the complete oxidation of glucose?A) It is used to synthesize
1. 1 answer
2. 826 views
How do you use imlicit differentiation to differentiate e^(xy)?I have the problem "use implicit differentiation to find dy/dx.
1. 1 answer
2. 782 views
Find the derivative ofy=ln((1+e^x)/(1-e^x)) I know that the derivative of y=ln(1+e^x) would be (e^x)/(1+e^x), but I'm not sure
1. 3 answers
2. 367 views
Delia works from 8:00 a.m. to 4:30 p.m. and has one hour each day for lunch. How much does she earn for a five-day workweek at
1. 1 answer
2. 702 views
Were cassette tapes famous when they first came out?
1. 2 answers
2. 329 views
A dominant gene A produces wire-haired texture in dogs. Its recessive aamllele a produced smooth hair. Cross the heterozygous
1. 1 answer
2. 1,222 views
A small cart weighs 15.0 N. If a constant force of 25 N is used to move the cart horizontally across the desk,A] What will
1. 1 answer
2. 459 views
Issac has to do 1000J of work on a 5kg box, and all the work he did simply went into lifting it above the ground. How high above
1. 1 answer
2. 900 views
What types of pathogens? What habits in your food preparation practices do you think might cause these pathogens to grow? What
1. 0 answers
2. 658 views
Review the nutrition quality of the items, using what you know about daily values, and ingredients (one of the products must
1. 3 answers
2. 884 views
This is in regard to my earlier post about the conversation-Thank you for all your help.Thank you for your patience too Could
1. 2 answers
2. 550 views
I have to read this and answer these questions for homeowrk-I'm not sure if I did this correctly. Could you please check-I put
1. 4 answers
2. 1,690 views
We're learning direct object pronouns so I had to replace the "sellos" in the first sentence-did I do it correctly?Tú
1. 1 answer
2. 535 views
What is the standard notation for 3 to the 3rd power
1. 8 answers
2. 1,708 views
The lim as x goes to 0- for cos(x)/sin(x). I know the answer is negative infinity but I don't really understand why.
1. 2 answers
2. 404 views
A rectangle is inscribed with its base on the x axis and its upper corners on the parabola y= 12 - x^2. What are the dimensions
1. 1 answer
2. 663 views
I'm in 6th grade and I need help for my science project. I don't even know what to do. Any fun science projects for 6th graders?
1. 9 answers
2. 1,418 views
Let f be a function such thatf(-1)=3 and f'(-1)=6 let h(x)=x^5f(x) evaluate h'(x) at x=-1
1. 1 answer
2. 339 views
If the true population standard deviation was known to be 3.0, then approximately what minimum sample size would you need in a
1. 0 answers
2. 1,244 views
if the discriminant of (5u^2)+bu+2=0 is 41, what are all the values of b
1. 2 answers
2. 495 views
9 + 5k = 45 + 2Kthe sample shows operation S9 to come up with 5K=36+2k assuming subtract 9 from the 45 sample shows K=12 how did
1. 7 answers
2. 292 views
A 500kg pig is standing at the top of a muddy hill on a rainy day. the hill is 100.0m long with a vertical drop of 30.0m. the
1. 1 answer
2. 1,982 views
while on the moon, the Apollo astronauts enjoyed the effect of a gravity much smaller than that on earth. if Neil Armstrong
1. 5 answers
2. 7,614 views
I'm sorry I'm just really confused by ionization energies and the heat of formation. Could you explain how to set up this
1. 0 answers
2. 556 views

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