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A jara has 25 green grapes and 75 purple grapes. what is the probability that a purle grape will be chosen at random?
1. 2 answers
2. 424 views
You are standing on a beach and 5 wave crests land on shore in 50 seconds. Each wave is 32m apart. Find Frequency, period,
1. 0 answers
2. 415 views
Weights of male mountain lions follow the normal distribution with a median of 150 lb and an interquartile range of 8.2 lb. Fin
1. 3 answers
2. 677 views
An orchestra consists of 25 members. The youngest member is 32 years old. She leaves and is replaced by a new member who is 30
1. 0 answers
2. 393 views
Who made the first light bulb?
1. 1 answer
2. 611 views
A large number of children were surveyed. The table below shows the distribution of the time they spent watching TV in the week
1. 0 answers
2. 499 views
A class has 3 sections. Here is a summary of the scores on the final exam.Average SD Number of Students Section 1 68 9 20
1. 2 answers
2. 553 views
A large number of children were surveyed. The table below shows the distribution of the time they spent watching TV in the week
1. 1 answer
2. 532 views
Suppose that the magnetic field in the figure below has a magnitude of 1.1 T, the rod has a length of 0.86 m, and the hand keeps
1. 0 answers
2. 487 views
There are 10 identical consumers whose demand is D: p = 20 - 10q. There are 10 identical firms, each firm's marginal cost is
1. 1 answer
2. 728 views
Samantha opened a savings account and deposited some money into the account. The account pays an annual simple interest rate of
1. 5 answers
2. 1,270 views
The Great GatsbyMortality is something we will all face at some point in our life. However, I doubt many people will deal with
1. 0 answers
2. 1,582 views
What does my teacher mean by this?So I'm writing an essay on the great gatsby and I told my teacher about it via emai. (I'm
1. 1 answer
2. 652 views
1. En nuestra casa, mi hermana y yo preparamos la comida los fines de semana y _____ padres la preparan durante la semana.---
1. 2 answers
2. 1,349 views
check?I was unsure how to do this part... I still put the answers. Will you correct them if they are wrong and explain to me how
1. 1 answer
2. 734 views
I have the answers... will you tell me if they're right??Choose the correct form of the possessive adjective. Modelo: amigos (mi
1. 4 answers
2. 965 views
At a crime scene, police officers find a murder victim in a tub full of warm water. A thermometer shows that the water
1. 1 answer
2. 590 views
In an episode from the TV show Futurama, Phillip J. Fry had $0.93 in his bank account in 2000. In the year 3000 it had grown to
1. 3 answers
2. 535 views
Beer cans are right circular cylinders. My Algebraic Ale and Logarithmic Lager cans, from the Schmidt Brewery, have dimensional
1. 1 answer
2. 502 views
The radioactive isotope you discovered at 8 a.m weighed 75 mg. You named it "Nerdium." At 3 p.m. it measured only 0.009 grams.
1. 1 answer
2. 481 views
At a crime scene, police officers find a murder victim in a tub full of warm water. A thermometer shows that the water
1. 0 answers
2. 613 views
I have the answers will you just tell me if I'm right? This is for my final study guide.The Compromise of 1850 affected which
1. 3 answers
2. 580 views
Olive Oyl sent Popeye and Wimpy out to get spinach and burgers. They bought the following combination: If the square of the
1. 1 answer
2. 615 views
A p-n junction is to be created by diffusing boron (B) into an n-type silicon wafer with an existing carrier concentration of
1. 1 answer
2. 617 views
To increase corrosion resistance, chromium is diffused into steel at 980∘ C. If the surface concentration of Cr is maintained
1. 0 answers
2. 491 views
A p-n junction is obtained at a depth of 3×10−3 cm by diffusion of antimony (Sb) into p-type germanium. What is the acceptor
1. 0 answers
2. 416 views
The Gaussian error function can be approximated for small values of x as erf(x)≈x. Suppose a silicon wafer is exposed to
1. 0 answers
2. 724 views
(a) Certain alloys such as LaNi5 can store hydrogen at room temperature. A plate of LaNi5 containing no hydrogen is placed in a
1. 0 answers
2. 608 views
You wish to remove nitrogen from the near-surface region of a plate of cobalt which is 1.0 cm thick. The plate is placed in a
1. 0 answers
2. 405 views
An undesirable consequence of welding steel by acetylene torch is the rise in hydrogen concentration in the metal. That hydrogen
1. 0 answers
2. 462 views
Carburization" of pure iron (Fe) is carried out at 950∘ C. It is desirable to achieve a carbon content of 0.9% at a depth of
1. 0 answers
2. 521 views
There is a door that is 1.0 m wide and can rotate about a vertical axis without friction. The door’s mass is 15 kg and is free
1. 0 answers
2. 1,076 views
a helicopter that is 200 meters above the ground descends at a rate of 2 meters per second. The altitude of the helicopter after
1. 1 answer
2. 669 views
Joyce combines 9 atoms of hydrogen and 3 atoms of nitrogen to make 3 molecules of ammonia.write a direct variation equation
1. 0 answers
2. 1,090 views
please help!Noah knows that his friend Ryan uses 2 small chlorine tablets each week to maintain his 10,000 gallon pool: 1)Write
1. 1 answer
2. 606 views
1. Fitzgerald creates purpose in Chapter 1. What was his purpose and how does he go about doing it?7. Write a Gatsby-esque
1. 1 answer
2. 1,267 views
A car moving at 43 km/h skids 16 m with locked brakes.How far will the car skid with locked brakes at 129 km/h?
1. 0 answers
2. 450 views
rectangle room is 3.75 m by 2.84 m what is the length of the diagonal? how to calcuate?
1. 1 answer
2. 302 views
rectangle room is 3.75 m by 2.84 m what is the length of the diagonal? how to calcuate?
1. 1 answer
2. 837 views
1. Believing that truth is what works for actual real people, Harvard psychologist William James developedthe philosophy of (A.
1. 5 answers
2. 768 views
HELP?Two students are given cubic boxes, measuring 10 cm on a side. Robert puts a single glass marble with a diameter of 10 cm
1. 11 answers
2. 13,628 views
Water is flowing through a horizontal pipe at a rate 0.2 m3/s. The pipe narrows from a radius of 10 cm to 4 cm. What is the
1. 0 answers
2. 1,275 views
These are my directions: Change the present tense verb in the sentence to the preterite tense. Can you help me understand how to
1. 3 answers
2. 672 views
I have to draw a topographical map on poster board of an imaginary island. It must have 2 mountains, 12 MI apart, one with a
1. 1 answer
2. 463 views
The pulley system shown in the figure is used to lift a 37 kg crate. Note that one chain connects the upper pulley to the
1. 1 answer
2. 1,477 views
ignition of mgnh4po4*6h2o produces nh3, h2o and magnesium pyrophosphate, Mg2P2O7. complete and balance the equation for this
1. 1 answer
2. 4,282 views
what is the formula weight for CuSO4 5H2O?
1. 3 answers
2. 426 views
epsom salts, household ammonia, and rubbing alcohol are also consumer chemicals that could be used in this experiment. what are
1. 1 answer
2. 982 views
For my chem class I have 3 elements and have to find what they are used for today or an interesting fact. I have looked but I
1. 1 answer
2. 496 views
Balance the equation and write the reaction-quotient expression, Qc.U(s) + F2 (g) <----> UF6 (g)
1. 3 answers
2. 3,444 views
How do the solutions of the equation compare to the length of the rectangular object and the x-intercept of the graph? Provide
1. 1 answer
2. 463 views
Can you make sure my Algebra II work is correct? I've done the problems. I just want to make sure I am right.1. Write an
1. 1 answer
2. 847 views
Given:Jay Letterman has just (year: 2012) become product manager for Avenir. Avenir is a consumer product with a unit retail
1. 0 answers
2. 433 views
Given:Jay Letterman has just (year: 2012) become product manager for Avenir. Avenir is a consumer product with a unit retail
1. 0 answers
2. 443 views
I read the book Ella Minnow Pea for school... And I actually enjoyed it! But I have to answer some questions about it and I'm
1. 2 answers
2. 607 views
Can you help me on this? How consistent were the republican principles applied by Thomas Jefferson and James Madison during
1. 6 answers
2. 672 views
How did the compromises made when writing and ratifying the Constitution encourage the development of political factions?
1. 0 answers
2. 414 views
Evaluate the extent to which the Articles of Confederation were effetive in solving the problems that confronted the new nation.
1. 1 answer
2. 540 views
How did the compromises made when writing and ratifying the Constitution encourage the development of political factions?
1. 4 answers
2. 1,088 views
I know this is really long... but I can't figure it out for the life of me. If you don't want to answer the whole question that
1. 2 answers
2. 747 views
Solve for y,xy + x = -3 How do you do this? I can't seem to come up with the correct answer...
1. 4 answers
2. 293 views
how do i complete the tablewith 4x-y=5 x: 0 1, 2 and im trying to find 'y'
1. 1 answer
2. 271 views
solve the linear system using substitution4x - y=5 4x + 4y= -4 Also by using elimination.
1. 1 answer
2. 691 views
Aspirin (C9H8O4) is synthesized by the reaction of salicylic acid (C7H6O3) with acetic anhydride, C4H6O3.2C7H6O3 + C4H6O3 −→
1. 3 answers
2. 1,301 views
Hi, I need some help on my homework.Can you help me? True or False, if False correct the underlined portion. 1) If 3<x, then
1. 3 answers
2. 471 views
How do you get the answer for this equation a+2b+(14a-5b)-[6a+6b-(a+4)]
1. 1 answer
2. 339 views
which natural phenomenon can describe light as a wave?
1. 1 answer
2. 329 views
WHERE DO I PUT THE PERENTHESIS TO MAKE THIS STATEMENT TRUE: 18+2*1+3 TO THE SECOND POWER
1. 1 answer
2. 384 views
treatment of a 0.400g sample of impure potassium chloride with an excess of AgNO3 resulted in the formation of 0.733g of AgCl.
1. 1 answer
2. 7,802 views
In a family of 5 children, how many different ways can you have 3 boys and 2 girls?
1. 3 answers
2. 1,880 views
Find the volume and surface area of a right cylinder with radius 7.5 cm and height 16 in. Make sure your final answer is in
1. 4 answers
2. 711 views
Mr Logan can saw 8 logs in 3 hours. How many logs can Mr Logan saw in one hour?
1. 3 answers
2. 400 views
1. You are assigned to take care of a patient who is scheduled to undergo a surgical operation. The doctor told you not to allow
1. 1 answer
2. 1,066 views
a circular cylinder has a base with a radius of 7.5 cm. and a height of 12 cm. a rectangular prism has a square base and height
1. 2 answers
2. 857 views
f(x)=x^2-1 ; x = -3, -2, -1, 0, 1, 2, 3i got 8,3,0,-1,0,3,8 as the answer when i plugged in x. how would i graph these numbers
1. 1 answer
2. 295 views
Do people living in countries with higher real GDP necessarily have better living standards compared to countries with
1. 0 answers
2. 535 views
Which of the following pairs of compounds will give a precipitate in a diluted solution?**a) Cu(NO3)2 and Na2CO3 b) KNO3 and
1. 2 answers
2. 1,432 views
Acetic acid dissociates/ionizes itself as follows:CH3COOH(aq) ⇔ H+(aq) + CH3COO-(aq) If you add sodium acetate, CH3COONa, to
1. 1 answer
2. 1,470 views
A mixture of lead, magnesium, nitrate and chromate ions are present in a solution. What will the precipitate be?**a) MgPb b)
1. 1 answer
2. 959 views
Consider the reaction 3X + Y ⇔ 2W + Z.At equilibrium, [X] is 7.0 M, [Y] is 6.0 M, [W] is 5.0 M and [Z] is 7.0 M at 298 K. The
1. 1 answer
2. 1,379 views
0.80 mol/L of A and B are mixed. They react very slowly to produce C and D as follows:A(aq) + B(aq) ⇔ C(aq) + 2D(aq) When
1. 1 answer
2. 440 views
In the system A(g) + 2B(g) ⇔ 2C(g) + 2D(g) ΔH=21 kJ/mol, it is possible to increase the quantity of C by:a) adding a catalyst
1. 1 answer
2. 555 views
For the following acids:i. CH3COOH ii. HNO2 iii. HCN a) What is the dissociation equation in an aqueous solution? b)Give the KA
1. 1 answer
2. 1,331 views
A weak acid solution, HX 0.37 M, has a pH of 3.70. Calculate the acidity constant for this acid.
1. 1 answer
2. 1,897 views
Calculate the volume of Ba(OH)2 0.20 M necessary to neutralize 300.0 mL of H3PO4 0.30 M. (4 marks)
1. 2 answers
2. 1,838 views
What is the pH of a solution prepared by dissolving 12.2 g of benzoic acid in enough water to produce a 500 mL solution?
1. 1 answer
2. 765 views
Commercial vinegar usually has a concentration of 5%, per volume.a) Calculate the [H3O+] , if the density of acetic acid is
1. 2 answers
2. 952 views
Calculate the KA of formic acid if 2.3 g of it is dissolved in 1 litre of water to give [H+] of 0.003 M.
1. 1 answer
2. 677 views
The equilibrium constant for the following reaction is 7.2 x 10-10. What is the [H+] in a solution 1.0 M of this acid?HCN + H2O
1. 1 answer
2. 1,206 views
200 g of CH3COOH are dissolved in enough water to make 1.5 L. What is the molarity of the acetic acid solution?
1. 1 answer
2. 745 views
Which of the following contains the highest H3O+ ion concentration? Explain your answer.HCl 0.1 M HCH3CO2 0.1 M
1. 1 answer
2. 900 views
Are the reactants or the products favoured in the following reactions?a. CH3COOH with NH3? b. HS- with HCO3-? c. HNO2 with NH3
1. 1 answer
2. 1,040 views
Classify the following 3 acids in order of increasing acidity:Acid 1:Ka = 8 x 10-6 Acid 2:Ka = 6 x 10-4 Acid 3:Ka = 9 x 10-11
1. 1 answer
2. 1,653 views
Fred needs to do quite a few errands. He needs to stop by the cleaners, the post office, the hardware store, and the bank. There
1. 1 answer
2. 586 views
On December 31 of last year, Wolfson Corporation had in inventory 400 units of its products, which cost $21 per unit to produce.
1. 1 answer
2. 783 views
At the end of January, Mineral Labs had inventory of 725 units, which cost $10 per unit to produce. During February the company
1. 0 answers
2. 833 views
Suppose that the gravitational time dilation on the surface of a star is 1.1. What would be the escape velocity from the star?
1. 0 answers
2. 417 views
If 100 asteriods, each of diameter of 100 km, were combined into a single object, approximately what would its diameter be?
1. 1 answer
2. 371 views
I have an input / output machineI need a rule I can use for any value, like 10 or 100 input 1, output 3 input 2, output 6 input
1. 4 answers
2. 515 views
Many moles of each reactant are Needed to produce 3.60 x 10^2g CH3OH?
1. 1 answer
2. 1,054 views

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