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Questions (983)

Let $a$, $b$, and $c$ be integers such that $a \equiv 1 \pmod{7}$, $b \equiv 2 \pmod{7}$, and $c \equiv 6 \pmod{7}$. What is the
1. 1 answer
2. 154 views
The sum6\left( 1\cdot1 + 2\cdot2 + \dots + n(n) \right)\] is equal to a polynomial $f(n)$ for all $n \ge 1.$ Write $f(n)$ as a
1. 1 answer
2. 106 views
Find polynomial f(n) such that for all integers n \geq 1, we have6\left( 1\cdot1 + 2\cdot2 + \dots + n(n) \right) = f(n).\]
1. 1 answer
2. 83 views
Integrate 1/x +2/x^3+2
1. 1 answer
2. 47 views
Integrate 1/x+ 2/x^3+2
1. 1 answer
2. 44 views
Integrate (t√t+√t/t^2,)dx
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2. 40 views
Casey has 5/6 left of a section of sidewalk to clean. if he can clean 5/18 of a section in 1 minute, how long will it take him
1. 1 answer
2. 116 views
Hi i need friends that are 11 yrs old and not posing as a 50 yr old man
1. 60 answers
2. 259 views
The density of the customer population of a service centre is high near the service centre but decreases with increasing distace
1. 2 answers
2. 259 views
Suppose a business manufactures computer monitors and sells them to retailers for $98 each. The business has fixed costs of
1. 1 answer
2. 161 views
If (126)n=86 base 10 find the positive value of n
1. 1 answer
2. 164 views
A lead bullet of mass 50g is fixed with a velocity of 200ms into a lead block of mass 950g given that the lead can move freely
1. 0 answers
2. 141 views
In a class of 45 students 20 offer geography while 28 offer chemistry. How many students offer both
1. 1 answer
2. 122 views
Find the resultant of two vectors of 9 units and 8 units acting at an angle of 60 degree with each other using scale drawing and
1. 3 answers
2. 161 views
Two towns are 15 km apart. What would be the distance between the two towns on a map with a scale of 1:300 000
1. 1 answer
2. 172 views
A phone line runs east along a field of 1.6 miles and then north along the edge of the same field for 2.5 miles. If the phone
1. 1 answer
2. 164 views
that chilly day, she grabbed her stole on the way out thedoor. Is stole a coat or a scarf?
1. 1 answer
2. 192 views
Consider a vertical piston/cylinder system. The piston has a mass of 35 kg and has an unknown radius. There is a pressure gauge
1. 1 answer
2. 256 views
Please help check my answers!!! Thanks!!!1. 1. How was Texas post-war growth different than early 1900s oil boom population
1. 0 answers
2. 514 views
Please help check my answers!!! Thanks!!!1. (Question is typed in the first question above posted by another student) I pick #B.
1. 2 answers
2. 431 views
When Dhawn arrives at work (in bold) he hangs his jacket on his chair. Which grammatical element do the bold words express?A
1. 6 answers
2. 2,248 views
1. The frequency table below shows the ages of 30 children who participate in soccer league How many are 12 years or older?Ages.
1. 22 answers
2. 3,452 views
Two charges are located on the x axis as shown in the figure. d=10.0 cm, q1 =+6.97 μC, and q2 =−10.4 μC.
1. 2 answers
2. 515 views
Use the excerpt from the poem in the lesson to answer the question.“Night climbed the horizon like a cat on the prowl; It’s
1. 8 answers
2. 1,010 views
If the molar heat of combustion of ethane (C2H6) is -1560 kJ/mol. The heat produced when 111 g of ethane is burned is a.bc MJ.
1. 1 answer
2. 444 views
If 8,x,y-4 are in AP find x and y
1. 1 answer
2. 189 views
The swimming pool has the length of 5 units more than its width.if the area of the said pool measures 84 square units , find the
1. 1 answer
2. 455 views
What landforms are created by glacial erosion?
1. 9 answers
2. 9,148 views
Water is drained out of a pool at 50 litres per minute.1 litre = 0.001 cubic metres. How long will it take to drain 1 cubic
1. 1 answer
2. 970 views
A machine with V.R4 requires 300j of work to raise a load of 300N through a vertical height of 3§2.find the efficiency
1. 1 answer
2. 235 views
Hello! I'm so so confused on this problem for my Trig class. I don't even know where to begin. I'd appreciate your help. Thanks!
1. 2 answers
2. 291 views
A smallnail can pierce an inflated car tyre without pressure reduction in the tyre.Explain this observation
1. 1 answer
2. 385 views
A sealed container holding 0.0262 L of an ideal gas at 0.987 atm and 70.3 °C is placed into a refrigerator and cooled to 44.1
1. 1 answer
2. 404 views
Clean up options following oil spill weathering
1. 0 answers
2. 258 views
"the lifeline of another man" is a noun phrase, what is it's function in a sentence
1. 2 answers
2. 657 views
A wheelbarrow inclined at 30° to the horizontal is pushed with a force of 150N. (A) what is the horizontal and vertical
1. 0 answers
2. 609 views
MI dase de baile (1) __(empezar) esta nochet
1. 1 answer
2. 244 views
Two or more elements can what to form compounds?
1. 2 answers
2. 293 views
Common emergencies include bone,joint,and muscle injuries. True or false............ i need help with all of the answers :(
1. 2 answers
2. 1,589 views
The gas mileage on Mr. Paulson's car is approximately 22 miles per gallon. In one week, how many fewer gallons of gas does he
1. 0 answers
2. 271 views
Rowena and her friends are eating lunch at a restaurant. Their total bill comes to n dollars before tax and tip. The sales tax
1. 1 answer
2. 386 views
A chemist has three different acid solutions. The first acid solution contains25 % acid, the second contains 35 % and the third
1. 1 answer
2. 1,759 views
1)The root spect means see based on this knowledge what is most like the meaning of the word introspection?A) a carful
1. 45 answers
2. 20,093 views
Two vectors of force 15N and 25N respectively, are inclined at an angle of 68 to each other.calculate the resultant of two
1. 1 answer
2. 400 views
A pair of shoes with a manufacturer's price of $80 is marked up 115% and then sold to a customer at 65% off the mark up price.
1. 3 answers
2. 879 views
A patient’s blood is tested for growth hormone which has a molecular mass of 848.952 g/mol. The test results show a normal
1. 1 answer
2. 569 views
A piece of zinc is added to 1000cm3 of 0.2mol/dm3 hydrochloric acid. After effervescence had stopped, 28cm3 of the resulting
1. 1 answer
2. 830 views
The concentration of citric acid (H3C6H5O7) in citric fruits ranges from 0.005 M to 0.30 M. Consider a 12.6 mL sample of pure
1. 1 answer
2. 853 views
what volume of the following solutions is required to obtain 0.277 mol of each solute?0.228 M AlCl3 2.22 M HCl
1. 1 answer
2. 416 views
A sample of sodium carbonate, Na2CO3, weighs 44.0 g. Calculate the number of Na2CO3 formula units, the number of Na+ ions, and
1. 1 answer
2. 612 views
A compound with the molar mass of approximately 142 g/mol has the composition 50.7% C, 9.9% H, and 39.4% N. What is its
1. 1 answer
2. 3,063 views
A compound with the empirical formula CH2O has a molar mass of approximately 90 g/mol. What is its molecular formula?
1. 3 answers
2. 10,337 views
Monosodium glutamate (NaC5H8NO4) is used extensively as a flavor enhancer.What is its percent composition?
1. 2 answers
2. 942 views
what volume of the following solutions is required to obtain 0.277 mol of each solute?0.228 M AlCl3 2.22 M HCl
1. 1 answer
2. 453 views
Sodium bicarbonate is sometimes used to neutralize acid spills. If 2.0 L of 9.0 M H2SO4 is spilled, what mass of sodium
1. 1 answer
2. 1,027 views
One way to remove lead ion from water is to add a source of iodide ion so that lead iodide will precipitate out of solution:Pb2+
1. 2 answers
2. 1,759 views
The concentration of citric acid (H3C6H5O7) in citric fruits ranges from 0.005 M to 0.30 M. Consider a 28.4 mL sample of pure
1. 1 answer
2. 2,531 views
An aqueous solution of glucose (C6H12O6), called D5W, is used for intravenous injection. D5W contains 54.30 g of glucose per
1. 1 answer
2. 947 views
How many moles of Mg2+ and NO3− form for each mole of Mg(NO3)2 that dissolves?
1. 1 answer
2. 2,437 views
A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's
1. 1 answer
2. 781 views
Given a geometric progression whose common ratio is 2, if the sum of the 6th to 7th terms is 288, determine the sum of the 4th
1. 2 answers
2. 1,106 views
A 25.0 mL sample of 0.100 M propanoic acid (HC3H5O2, Ka = 1.3 ✕ 10-5) is titrated with 0.100 M KOH solution.A) 8.0ml B) 12.5
1. 1 answer
2. 1,072 views
Which information can you determine about a chemical reaction from a complete chemical equation?- how much energy is released as
1. 1 answer
2. 1,677 views
Sonny chews on a piece of gum for 120 minutes. About 1 1/4 minutes, he blows a bubble. How many bubbled did Sonny make?
1. 1 answer
2. 412 views
The Smith family is hiking a 23 1/3 mile trail. The first day, they hiked 10 1/2 miles. How much further do they have to compete
1. 1 answer
2. 541 views
There is never enough time to see all my friends when I come back once a week for consultation. Is the pronoun reference is
1. 1 answer
2. 444 views
Which example does not show community planning that affects infrastructure?A.hiring a construction firm to build a new freeway
1. 2 answers
2. 634 views
May I get a little help on this question? Please and thank you!^^Which consideration is made when community leaders make
1. 2 answers
2. 560 views
An object on the surface of the sun would weight around 28 times as much as it weights on Earth. How much would a 202.8 pound
1. 1 answer
2. 602 views
A astronaut weight on the moon is equal to about 1/6 times her weight. If the she weight 150 pounds on earth, how much will she
1. 2 answers
2. 958 views
How much would a 203.8 pound woman weigh on the sun,if a object on the surface of the sun weight around 28 times as much weight
1. 1 answer
2. 383 views
What is the value of 4x when x=3.3?
1. 1 answer
2. 345 views
A cake recipe serves 12 people and calls for 1 cup of flour. I How many cup of flour do you need for 36, 72, and 96 serving?
1. 1 answer
2. 694 views
Describe the preparation of 100 ml of phosphate buffer pH 7.2 using a 0.5 M H2PO4 and O .5 M NaOH
1. 1 answer
2. 571 views
Assume that the stopping distance of a van varies directly with the square of the speed. A van traveling 40 miles per hour can
1. 1 answer
2. 748 views
Calculate the resultant of five coplanar forces of values 10N,12N,16N,20N,15N acting on an object at 0
1. 8 answers
2. 3,691 views
In a department store there were a certain number of red tshirts, blue tshirts, and yellow tshirts. 3/7 of the tshirts were red,
1. 1 answer
2. 919 views
Consider the specific heats H2O(s) = 2.09 J/g ·◦C, H2O (l) = 4.18 J/g ·◦C, and H2O(g) = 2.03 J/g ·◦C.The heat of fusion
1. 1 answer
2. 1,366 views
A sample of gas in a closed container at a temperature of 75◦C and a pressure of 6 atm is heated to 353◦C. What pressure
1. 1 answer
2. 888 views
There are several technological applications for the transuranium elements (Z > 92). An important one is in smoke detectors,
1. 1 answer
2. 553 views
A user is charged 300 monthly for a particular mobile plan, which includes 100 free text messages. Messages in excess of 100 are
1. 1 answer
2. 2,038 views
Solve for x. 50e^-0.12x = 10
1. 1 answer
2. 722 views
Does anyone have the answers for unit 2 leasson 15 measurement test
1. 1 answer
2. 307 views
Q: A 4m flag pole is not standing up straight. There is a wire attached to the top of the pole and anchored in the ground. The
1. 6 answers
2. 3,508 views
Which statement about ethnic groups in Southwest Asia is accurate?A. Arabs are the majority in every country in the region. B.
1. 10 answers
2. 4,721 views
Which of the following factors is impeding economic growth in India?A. poor infrastructure B. its command economy C.
1. 9 answers
2. 2,584 views
3/5 of the booksin a class library are englishbooks. The rest are non-english books. If the total number of books in the library
1. 3 answers
2. 1,464 views
Use the balanced equation for the reaction of lithium oxide with water:Li2O(s) + H2O(g) --> 2LiOH(s) to determine how many grams
1. 1 answer
2. 2,685 views
Hello Ms.Sue. Can you check this to make sure I did it correctly. Thank you in advance for the help.What is the slope of the
1. 2 answers
2. 505 views
Josephine’s ice cream shop always makes sure its sundaes maintain a ratio of 4:1 of ice cream to toppings. A group of friends
1. 5 answers
2. 1,265 views
Explain the principle of checks and balances as it relates to the power of the president. Provide one example to support your
1. 6 answers
2. 8,086 views
Please elaborate John Dalton's statement,"all living things are made up of cells".By the way, I'm G-11 student.
1. 0 answers
2. 637 views
Can you please elaborate John Dalton's statement,"all living things are made up of cells".By the way,I am g11 student.
1. 0 answers
2. 479 views
the length of an aluminum is 76.5cm and that of an iron ruler is 80cm at 0 degree celsius at what temperature will the length of
1. 1 answer
2. 697 views
the length of an aluminum is 76.5cm and that of an iron ruler is 80cm at 0Â¡Ã£c. at what temperature will the length of the
1. 1 answer
2. 625 views
What is the mole ratio of hydrochloric acid to carbon tetrachloride?How many moles of CCl4 are produced when 5 moles of CH4
1. 1 answer
2. 952 views
How are models limited by our patterns of thought?
1. 0 answers
2. 444 views
A surveyor sights two signs and the angle between the two lines of sight measures 55. If the first and the second signs are 70 m
1. 5 answers
2. 6,634 views
Two ships leave the same port at the same time. One ship sails on a course of 110 degree at 32 mi/h. The other sails on a course
1. 2 answers
2. 5,838 views
At 90C the following equilibrium is established H2(g) + S(s) = H2S(g) Kc= 6.8x10^-2If 0.17 moles of H2 and 0.4 mole of Sulfur
1. 4 answers
2. 1,100 views

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