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Solve the following system of equations and give a geometrical interpretation of the result.3x + y - z = 2 x - 2y + z = 0 x + 2y
1. 1 answer
2. 1,534 views
Explain why there are many different vector and parametric equations for a plane. Provide specific examples and justify your
1. 2 answers
2. 1,382 views
Determine the distance between the point P(1,2,3) and the line 3x-4z-1=0. I got 2 but I don't know if it is correct.
1. 2 answers
2. 365 views
Determine the distance from the point 𝑃 (4,3) to the line with equation 3𝑥 − 4𝑦 + 25 = 0.
1. 1 answer
2. 519 views
For 𝐿1:𝑟= −3,2,8 +𝑠(7,−1,−6),𝑠𝜖𝑅 and 𝐿2:𝑟= 3,7,2 +𝑡(1,−6,0),𝑡𝜖𝑅, determine the
1. 1 answer
2. 423 views
Determine the intersection of the three planes with the following system of equations:x - y + 2z = 0 3x + 2y - z= -5 4x + 2y -
1. 2 answers
2. 513 views
Determine the value of k for which the direction vectors of the lines(x-1)/k = (y-2)/2 = (𝑧+1)/ k+1 and (x+3)/-2 = z, 𝑦 =
1. 5 answers
2. 1,195 views
The nose of a plane is pointing west with an airspeed of 350 km/h. The plane’s resultant ground velocity is 315 km/h [S75°W].
1. 2 answers
2. 1,435 views
Chris pulled a sled 153 m by exerting a constant force of 225N at a constant angle of 65 degrees to the level ground. Find the
1. 1 answer
2. 892 views
Determine the value(s) of x such that the area of the parallelogram formed by the vectors a=(x+1, 1, -2) and b=(x,3,0) is the
1. 4 answers
2. 1,793 views
Determine the value(s) of k such that the angle between the vectors a= (1,1,k) and b=(1,0,1) is 45 degrees.
1. 1 answer
2. 2,069 views
A box weighing 415 N is hanging from two chains attached to an overhead bean at angles of 56 degrees and 49 degree. Find the
1. 2 answers
2. 849 views
Lin’s father is paying for a $20 meal. He has a 15%-off coupon for the meal. After the discount, a 7% sales tax is applied.Wha
1. 5 answers
2. 2,882 views
I get distracted easily, how do I stay on track?
1. 0 answers
2. 149 views
The mass of a bicycle has an area of .20 m^2. The weight of the person riding the bike is 100 N. How much pressure is exerted by
1. 1 answer
2. 691 views
1. a 63.0-kg sprinter, starts a race with an acceleration of4.200 m/s 2 4.200m/s2 . What is the net external force on him? 2.
1. 1 answer
2. 1,207 views
a 63.0-kg sprinter, starts a race with an acceleration of4.200 m/s 2 4.200m/s2 . What is the net external force on him?
1. 1 answer
2. 588 views
Mike is mowing his lawn. The force exerted on a lawn mower is 51 N. The mass of the mower is 24 kg. What is its acceleration?Wil
1. 1 answer
2. 795 views
A cylinder of propane gas at a temperature of 20 C exerts a pressure of 8 atm. When a cylinder has been placed in sunlight, its
1. 1 answer
2. 1,103 views
A sample of oxygen gas is at a temperature of 340k and occupies a volume of 1.2cm3. What temperature will the sample of gas be
1. 1 answer
2. 957 views
A bicycle pump contains 250cm3 of air at a pressure of 90kPa. If the air is compressed , the volume is reduced to 200cm3. What
1. 1 answer
2. 632 views
A ladder is leaning against the side of a house. The base of the ladder is 8 feet from the wall and makes an angle of 42 degree
1. 3 answers
2. 1,713 views
All of the following are within the domain of the federal bureaucracy EXCEPT the power toA. regulate. B. legislate. C. organize.
1. 1 answer
2. 1,913 views
Which of the following BEST describes the interpretation of the balance of power between the states and the federal government
1. 1 answer
2. 1,859 views
All of the following are enumerated powers of Congress EXCEPT the power toA. tax. B. coin money. C. declare war. D. *** regulate
1. 1 answer
2. 3,014 views
Which of the following reflects the ideas expressed in Federalist, no. 10 when addressing the concerns presented by Brutus I?A.
1. 1 answer
2. 2,328 views
Which of the following is typically negatively affected by the system of checks and balances?A. the thoroughness of government
1. 1 answer
2. 1,674 views
A participatory democracy would BEST be described as a systemA. that emphasizes broad participation in politics and civil
1. 3 answers
2. 2,082 views
Which of the following phrases from the Declaration of Independence BEST expressed the American colonists’ demand for limited
1. 1 answer
2. 2,277 views
Which domain of government belonged unequivocally to Congress and not to the individual states under the Articles of
1. 2 answers
2. 2,023 views
There is a bag with 10 marbles. There are 6 blue marbles and 4 red marbles. What is the probability of picking 2 red marbles
1. 1 answer
2. 484 views
There is a bag with 10 marbles. There are 6 blue marbles and 4 red marbles. What is the probability of picking 2 red marbles
1. 3 answers
2. 609 views
What is the simplified for of the expression cos theta / csc theta - sin theta?How do you show your work on this?
1. 1 answer
2. 1,738 views
What BEST describes the role of Super PACs in elections?A. Super PACs are an old part of American elections. B. Individuals
1. 2 answers
2. 1,243 views
Question 10 of 11The need for candidates to raise money helps to filter out candidates that are less competitive in general
1. 1 answer
2. 1,172 views
What is the effect of the Electoral College on voter turnout?A. Voter turnout is not affected by the Electoral College. B. There
1. 1 answer
2. 772 views
Which of the following BEST describes how the Electoral College affects campaign strategy?A. Presidential candidates focus on
1. 1 answer
2. 1,350 views
Which of the following BEST explains the political significance of interest groups?A. Interest groups allow majority opinions to
1. 1 answer
2. 1,442 views
A new wood stain loses 6.5% of its colour every year in a city that experiences a lot of hot, sunny days.What percent of colour
1. 2 answers
2. 1,581 views
Sally has saved 21 quarters over 8 days from washing cars.How many cents does Sally have ?
1. 1 answer
2. 424 views
A political party’s national convention is BEST defined as a meeting whereA. delegates elect the national chairperson and the
1. 1 answer
2. 923 views
What might one conclude about politics prior to the Federal Election Campaign Act of 1974?A. Political machines had reached the
1. 2 answers
2. 559 views
The winner-take-all system of elections in the United States creates a barrier for third parties because third partiesA. often
1. 1 answer
2. 778 views
A common trend in American party politics is that as Americans get older, they tend toA. identify as either Democrats or
1. 1 answer
2. 725 views
In a general election, candidates will typically adjust their messages toA. target as broad a voting base as possible. B.
1. 1 answer
2. 624 views
Two major causes of low voter turnout include the fact thatA. older Americans tend to vote in lower numbers and those with less
1. 4 answers
2. 1,672 views
Which factor led to the establishment of the Voting Rights Act?A.The Fifteenth Amendment was being circumvented by Southern
1. 3 answers
2. 997 views
In the final week of the quiz the Smartest Great Monkey in the World, 6 monkeys are still in the running: the males Choco and
1. 0 answers
2. 514 views
A bag of pofmäs contains 2/3 white granules and 1/3 yellow granules. Only 1/2 of the white grain will pop, while 2/3 of the
1. 2 answers
2. 432 views
Find the ΔHr0 for the reaction:Na2CO3(s) +2HNO3(aq) → 2NaNO3(s) +CO2(g) +H2O(l) ΔHr0=+125.7kJ ΔHr0=-67.2kJ ΔHr0=-45.3kJ
1. 3 answers
2. 2,423 views
Which two nations battled for control over Silesia as part of the Third Silesian War, one of the conflicts of the Seven Years’
1. 3 answers
2. 1,334 views
A person on a moving sidewalk travels 24 ft in 7 seconds. The moving sidewalk has a length of 180ft . How long will it take to
1. 1 answer
2. 572 views
A plane takes 1.2 h to fly to a point that is 420 km directly west of its original position if the wind was blowing at a
1. 2 answers
2. 512 views
The sum of 11terms of an Ap is 891 find the 28th and 45th terms if the common difference is 15
1. 1 answer
2. 605 views
How many different rearrangements are there using the letters AABBBCCCC?
1. 1 answer
2. 359 views
Letters A-J are put into a bag, 5 are selected at random (without replacement) to form a 5letter word:A. How many different
1. 1 answer
2. 565 views
Letters A-J are put into a bag, 5 are selected at random (without replacement) to form a 5letter word:A. How many different
1. 0 answers
2. 624 views
How many different rearrangements are there using the letters AABBBCCCC
1. 0 answers
2. 358 views
if the pH of a solution is 6.1, what is the concentration of H+ ions in that solution?
1. 1 answer
2. 571 views
What geographical feature was crucial to the settlement of the colonies and provided transportation to trade good
1. 1 answer
2. 462 views
What are the questions significant to? hundredths, tenths ,ones, thousands, or thousandths1. 325.25 2. 24.4 3. 9.721 4. 8009.721
1. 1 answer
2. 1,003 views
For the following stoichiometry problem, select ALL of the mole definitions you would need to solve the problem.Problem: If 2.5
1. 2 answers
2. 750 views
Can you find(a) a sine graph which touches the lines y = 3 and y = 1? (b) a cosine graph which crosses the x-axis at x = 1 and x
1. 1 answer
2. 1,541 views
HA and HB are two strong monobasic acids.25.0cm3 of 6.0moldm–3 HA is mixed with 45.0cm3 of 3.0moldm–3 HB. What is the H+(aq)
1. 4 answers
2. 8,352 views
Let f(x) = int 1 x √1 + t^2 dtUse your calculator to find f’(1)
1. 2 answers
2. 459 views
The table of values below shows the rate of water consumption in gallons per hour at selected time intervals from t = 0 to t =
1. 2 answers
2. 3,560 views
The function is continuous on the interval [10, 20] with some of its values given in the table below. Estimate the average value
1. 1 answer
2. 649 views
Adding 1 to the product of four consecutive positive integers always results in a perfect square. The first 2017 such square
1. 2 answers
2. 2,073 views
Amery recorded the distance and height of a basketball when shooting a free throw.1. Find the quadratic equation for the
1. 1 answer
2. 1,783 views
What is the end behavior of the graph of f(x) = -0.25x2 - 2x + 1?A) As x increases, f(x) increases. As x decreases, f(x)
1. 1 answer
2. 1,725 views
Which of the following Latino astronauts was honored for his contributions to science and his community?A. José Herández B.
1. 3 answers
2. 816 views
Which expression is the same as 6 times 52?A) 2(50 + 6) B) 6(50 + 2) C) 6(5 + 2) D) 50(6 + 2)
1. 9 answers
2. 2,729 views
To make purple paint we need to maintain a 3:2 ratio of red paint to blue paint .Red paint cost $20 a gallon and blue paint cost
1. 1 answer
2. 1,381 views
Find the missing length, round to the nearest tenth if necessary.There is a picture it shows a right triangle with side a being
1. 6 answers
2. 4,838 views
Please explain the use of "ser" and "estar". I don't understand where to use it and when to use it.
1. 1 answer
2. 539 views
which of the following is not a result of spanish influence in the United States?A) Place names such as “San Diego” and
1. 5 answers
2. 2,723 views
What is a Venn diagram good for?I’m trying to use one for this problem A study was made of 200 preschoolers to determine if
1. 1 answer
2. 1,346 views
Can someone help me compare“Full Fathom Five” by William Shakespeare and “Shane” by Jack Schaefer One is a poem one is a
1. 2 answers
2. 599 views
A photocopy was made of Julie’s watercolor painting the photocopy resize the paining so that it measured 4 inches wide by 7
1. 1 answer
2. 869 views
If 14 out of 20 people like chocolate milk what percent of people do not like chocolate milk
1. 2 answers
2. 681 views
The distance between Mountain View and crown top is 6.5 inches on a map if the scale on the map is 1 inch equals 25 miles what
1. 3 answers
2. 1,595 views
The distance between Mountain View and crown top is 6.5 inches on a map if the scale on the map is 1 inch equals 25 miles what
1. 22 answers
2. 3,033 views
The length of a dog on a scale drawing is 9 cm if the scale is 1 cm the 6 cm what is the actual length of the dog a 15 cm be 30
1. 3 answers
2. 762 views
Solve the proportion y/22 equals 3/11
1. 12 answers
2. 2,927 views
22 gallons of gas cost $65.56 what is the unit rate for a 1 gallon of gas a $298 per gallon be $3.28 per gallon C $3.08 per
1. 11 answers
2. 2,999 views
22 gallons of gas cost $65.56 what is the unit rate for 1 gallon of gas a $298 per gallon be $3.28 per gallon city $3.08 per
1. 11 answers
2. 2,419 views
An airplane travels 226 miles in two hours at that rate how far with the airplane travel in eight hours and 56.5 miles be 904
1. 3 answers
2. 964 views
Which of the following ratios is equivalent to 1215 4510 to 1260 to 86 60/45
1. 2 answers
2. 745 views
There are three red paperclips five yellow paper clips six silver paper clips in a jar what is the ratio of the total number of
1. 4 answers
2. 966 views
According to Americans living in the cities what was I sign of a communist revolution in the United States and the rise of mass
1. 23 answers
2. 15,633 views
What believe regarding American state mini riders of the rowing 20s era hold people only want to read about good things
1. 1 answer
2. 517 views
During the 1920s why did suburbs begin to emerge and there was a lack of housing in the city be more jobs are located in the
1. 1 answer
2. 735 views
Emily has 85 books on her bookshelf of those books 20% or mysteries 18 or adventure stories and the rest of fantasies what is
1. 1 answer
2. 709 views
The circle graph below shows the number of hours per week of college students spend studying each subject of a college court
1. 4 answers
2. 2,438 views
Yesterday a parking lot had 60 cars parked in at one of the cars parked in the parking lot 40% more silver 14 more red and the
1. 7 answers
2. 2,405 views
A car troubles 172 miles he’s in 7 gallons of gas at that rate how far can the car trouble using 42 gallons of gas 1032 miles
1. 2 answers
2. 653 views
The average of 1/5 and other two numbers out of which one is the half of the other is 1/4. What is the smallest fraction out of
1. 1 answer
2. 652 views
Toyland is having a sale items are 20% off how much will you save on an item that usually sells for $95
1. 3 answers
2. 901 views
If 36 graders are birds 35% on cats temper set on fish 5% off on birds reptiles 5% dogs 45% how many six graders were surveyed
1. 2 answers
2. 505 views
Identify the death small and simplified fractional form of 60% is it at 0 point6 4/5 0.6 and three. 0.0 6 3/5 0.0 6 6/10
1. 3 answers
2. 754 views

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