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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. 162 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. 116 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. 89 views
Integrate 1/x +2/x^3+2
1. 1 answer
2. 52 views
Integrate 1/x+ 2/x^3+2
1. 1 answer
2. 49 views
Integrate (t√t+√t/t^2,)dx
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2. 44 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. 118 views
Hi i need friends that are 11 yrs old and not posing as a 50 yr old man
1. 60 answers
2. 267 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. 266 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. 166 views
If (126)n=86 base 10 find the positive value of n
1. 1 answer
2. 169 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. 151 views
In a class of 45 students 20 offer geography while 28 offer chemistry. How many students offer both
1. 1 answer
2. 126 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. 166 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. 177 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. 177 views
that chilly day, she grabbed her stole on the way out thedoor. Is stole a coat or a scarf?
1. 1 answer
2. 198 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. 264 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. 521 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. 439 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. 2,262 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. 3,471 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. 522 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. 1,019 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. 451 views
If 8,x,y-4 are in AP find x and y
1. 1 answer
2. 192 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. 462 views
What landforms are created by glacial erosion?
1. 9 answers
2. 9,160 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. 977 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. 238 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. 298 views
A smallnail can pierce an inflated car tyre without pressure reduction in the tyre.Explain this observation
1. 1 answer
2. 392 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. 410 views
Clean up options following oil spill weathering
1. 0 answers
2. 261 views
"the lifeline of another man" is a noun phrase, what is it's function in a sentence
1. 2 answers
2. 662 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. 618 views
MI dase de baile (1) __(empezar) esta nochet
1. 1 answer
2. 248 views
Two or more elements can what to form compounds?
1. 2 answers
2. 296 views
Common emergencies include bone,joint,and muscle injuries. True or false............ i need help with all of the answers :(
1. 2 answers
2. 1,595 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. 276 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. 394 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. 1,769 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. 20,100 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. 407 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. 886 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. 578 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. 839 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. 863 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. 423 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. 620 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. 3,075 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. 10,343 views
Monosodium glutamate (NaC5H8NO4) is used extensively as a flavor enhancer.What is its percent composition?
1. 2 answers
2. 948 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. 460 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. 1,035 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. 1,766 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. 2,547 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. 956 views
How many moles of Mg2+ and NO3− form for each mole of Mg(NO3)2 that dissolves?
1. 1 answer
2. 2,444 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. 794 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. 1,112 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. 1,079 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. 1,684 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. 417 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. 551 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. 449 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. 644 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. 568 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. 609 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. 963 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. 387 views
What is the value of 4x when x=3.3?
1. 1 answer
2. 350 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. 707 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. 578 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. 754 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. 3,699 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. 930 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. 1,373 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. 897 views
There are several technological applications for the transuranium elements (Z > 92). An important one is in smoke detectors,
1. 1 answer
2. 561 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. 2,046 views
Solve for x. 50e^-0.12x = 10
1. 1 answer
2. 728 views
Does anyone have the answers for unit 2 leasson 15 measurement test
1. 1 answer
2. 310 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. 3,517 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. 4,730 views
Which of the following factors is impeding economic growth in India?A. poor infrastructure B. its command economy C.
1. 9 answers
2. 2,590 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. 1,472 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. 2,689 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. 509 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. 1,274 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. 8,093 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. 647 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. 489 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. 705 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. 636 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. 959 views
How are models limited by our patterns of thought?
1. 0 answers
2. 446 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. 6,641 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. 5,846 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. 1,105 views

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