Question and answer
Monomial
A monomial is a number, a variable or a product of a number and a variable where all exponents are whole numbers.
Expert answered|yumdrea|Points 6334|
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Asked 3/31/2014 11:09:10 AM
Updated 3/31/2014 12:41:38 PM
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This answer has been confirmed as correct and helpful.
Confirmed by andrewpallarca [3/31/2014 12:41:38 PM]
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Question 1 of 20 5.0 Points Combine like terms. (-3y2 - 7y - 9) - (4y2 + 6y + 9) A. y2 - y B. -9y2 - 11y - 18 C. 7y2 13y 18 D. -7y2 - 13y - 18
Weegy: (-3y2 - 7y - 9) - (4y2 + 6y + 9) = -7y2 - 13y - 18 User: Question 2 of 20 5.0 Points Name the binomial you can multiply by (x + 9) to get the product x2 + 5x - 36. A. 4 - x B. x + 6 C. x - 4 D. x - 6 Weegy: x - 4 is the binomial you can multiply by (x + 9) to get the product x2 + 5x - 36. User: Question 4 of 20 5.0 Points Simplify the product. (x - 4)(x + 3) A. x2 - 7x - 12 B. x2 + x - 12 C. x2 - x - 12 D. x2 - 12x - 1 Weegy: (x - 4)(x + 3) = x^2 - x - 12 User: Question 6 of 20 5.0 Points Suppose you mark n points on a circle, where n is a whole number greater than 1. The number of segments you can draw that connect these points is . How many segments can you draw if you mark 8 points on the circle? A. 56 segments B. 32 segments C. 60 segments D. 28 segments (More)
Question
Not Answered
Updated 7/10/2014 1:12:48 AM
0 Answers/Comments
Question 6 of 20 5.0 Points Below are the graphs of y = | x | and y = | x | - 9 . How are the graphs related? A. The graphs have the same shape. The y-intercept of y = | x | is 0 and the x-intercept of the second graph is –9. B. The graphs have the same y-intercept. The second graph is steeper than y = | x | . C. The two graphs are the same. D. The graphs have the same shape. The y-intercept of y = | x | is 0 and the y-intercept of the second graph is –
Weegy: We are not capable of viewing graphs here in weegy. User: Question 7 of 20 5.0 Points The table shows the height of a plant as it grows. What equation in point-slope form gives the plant’s height at any time? Let y stand for the height of the plant in cm and let x stand for the time in months. Time (months) Plant Height (cm) 3 15 5 25 7 35 9 45 A. y – 15 = (x – 3) B. y – 15 = 5(x – 3) C. y – 3 = (x – 15) D. The relationship cannot be modeled. Weegy: B. y ? 15 = 5(x ? 3) User: Question 8 of 20 5.0 Points Suppose y varies directly with x, and y = 8 when x = –6. What direct variation equation relates x and y? What is the value of y when x = –2? A. y = –0.75x; 1.50 B. y = –1.33x; 2.67 C. y = 1.33x; –2.67 D. y = 0.13x; –0.25 Weegy: The answer is B. y = 1.33x; 2.67 User: Question 9 of 20 5.0 Points The scatter plot shows the number of mistakes a piano student makes during a recital versus the amount of time the student practiced for the recital. How many mistakes do you expect the student to make at the recital after 6 hours of practicing? A. 55 mistakes B. 37 mistakes C. 63 mistakes D. 45 mistakes Weegy: A. 55 mistakes User: Question 11 of 20 5.0 Points Write an equation of a line with the given slope and y-intercept. m = –5, b = –3 A. y = –5x – 3 B. y = –5x + 3 C. y = 5x – 3 D. y = –3x – 5 Weegy: -2 is the y-intercept for the equation: y = 5x ? 2 User: Question 12 of 20 5.0 Points Write an equation in point-slope form for the line through the given point with the given slope. (8, 3); m = 6 A. y + 3 = 6(x - 8) B. y - 3 = 6(x - 8) C. y - 3 = 6(x + 8) D. y + 3 = 6x + 8 Weegy: b User: Question 13 of 20 5.0 Points What are the slope and y-intercept of the graph of the given equation? y = –4x + 2 A. The slope is –2 and the y-intercept is –4. B. The slope is 2 and ... (More)
Question
Not Answered
Updated 11/21/2014 1:39:47 AM
5 Answers/Comments
Write an equation of a line with the given slope and y-intercept : m = –5, b = –3 is y = -5x - 3 .
Added 11/21/2014 1:26:54 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [11/21/2014 2:11:03 AM]
The slope and y-intercept of the graph of the given equation of y = –4x + 2 is: The slope is -4 and the y-intercept is 2 .
Added 11/21/2014 1:28:01 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [11/21/2014 2:16:31 AM]
The slope of the line that passes through the pair of points: (1, 7), (10, 1) is -2/3.
Slope = (1 - 7)/(10 - 1 = -6/9 = -2/3 .
Added 11/21/2014 1:29:32 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [11/21/2014 2:33:08 AM]
Write y = x + 5 in standard form using integers is x - y = -5.
Added 11/21/2014 1:30:33 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [11/21/2014 2:23:55 AM]
The equation for the line that is parallel to the given line and passes through the given point. y = x + 8; (2, 16) is y = x + 14 .
y - 16 = x - 2
y = x - 2 + 16
y = x + 14 is the equation .
Added 11/21/2014 1:32:01 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [11/21/2014 2:24:13 AM]
Question 14 of 20 5.0 Points What is the slope of the line that passes through the pair of points? (1, 7), (10, 1) A. 3/2 B. -2/3 C. -3/2 D. 2/3
Weegy: The slope of the line that passes through (0, 0) and (-2, -3) is: 3/2 User: Question 15 of 20 5.0 Points The table shows the height of a plant as it grows. What equation in point-slope form gives the plant’s height at any time? Let y stand for the height of the plant in cm and let x stand for the time in months. Time (months) Plant Height (cm) 3 15 5 25 7 35 9 45 A. y – 15 = (x – 3) B. y – 15 = 5(x – 3) C. y – 3 = (x – 15) Weegy: B. y ? 15 = 5(x ? 3) User: Question 16 of 20 5.0 Points What are the slope and y-intercept of the graph of the given equation? y = –4x + 2 A. The slope is –2 and the y-intercept is –4. B. The slope is 2 and the y-intercept is –4. C. The slope is 4 and the y-intercept is –2. D. The slope is –4 and the y-intercept is 2. User: Question 18 of 20 5.0 Points Below are the graphs of y = | x | and y = | x | - 9 . How are the graphs related? A. The graphs have the same shape. The y-intercept of y = | x | is 0 and the x-intercept of the second graph is –9. B. The graphs have the same y-intercept. The second graph is steeper than y = | x | . C. The two graphs are the same. D. The graphs have the same shape. The y-intercept of y = | x | is 0 and the y-intercept of the second graph is –9. Weegy: We are not capable of viewing graphs here in weegy. User: Question 19 of 20 5.0 Points The number of sofas a factory produces varies directly with the number of hours the machinery is operational. Suppose the factory can produce 455 sofas in 48 hours. What is an equation that relates the number of sofas produced, n, with the amount of time, t, in hours? What is the graph of your equation? A. n = 9.48t B. n = 0.11t C. t = 4.74n D. t = 9.48n Weegy: d User: Question 20 of 20 5.0 Points Find the slope of the line. A. B. C. -2 D. 2 Weegy: TRUE. 0 > -2. User: ... (More)
Question
Not Answered
Updated 3/31/2014 10:08:51 PM
5 Answers/Comments
The slope of the line that passes through the pair of points (1, 7), (10, 1) is B. -2/3
Added 3/31/2014 9:59:46 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [3/31/2014 10:07:08 PM]
The slope and y-intercept of the graph of the given equation y = –4x + 2 is D. The slope is –4 and the y-intercept is 2.
Added 3/31/2014 10:01:31 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [3/31/2014 10:07:08 PM]
The relationship between the graphs of y = | x | and y = | x | - 9 is: D. The graphs have the same shape. The y-intercept of y = | x | is 0 and the y-intercept of the second graph is –9.
Added 3/31/2014 10:03:33 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [3/31/2014 10:07:09 PM]
Suppose the factory can produce 455 sofas in 48 hours. Then it can produce 455/48 = 9.48 sofas per hour. The equation that relates the number of sofas produced, n, with the amount of time, t, in hours is: A. n = 9.48t
Added 3/31/2014 10:06:41 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [3/31/2014 10:07:09 PM]
12000 + 5x = 15x where x is the number of yearbooks must they sell before their business breaks even.
Solve the equation we get x = 1200 yearbooks.
Added 3/31/2014 10:08:51 PM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [3/31/2014 10:10:45 PM]
Question 4 of 20 5.0 Points What is the solution of the system? Use substitution. y = x + 6 y = 2x A. (6, 12) B. (–12, –6) C. (–6, –12) D. (2, 4)
Weegy: d User: Question 5 of 20 5.0 Points How many solutions does the system have? x = -4y + 4 2x + 8y = 8 A. one solution B. two solutions C. infinitely many solutions D. no solution Weegy: The answer is D. no solution User: Question 8 of 20 5.0 Points The school cafeteria sells two kinds of wraps: vegetarian and chicken. The vegetarian wrap costs $1.00 and the chicken wrap costs $1.80. Today they made $98.80 from the 70 wraps sold. How many of the wraps sold were vegetarian? A. 36 wraps B. 37 wraps C. 30 wraps D. 34 wraps Weegy: The answer is 34 vegetarian wraps sold. [ v = vegetarian wrap c = chicken wrap v + c = 70 c = 70 - v v($1) + c($1.8) = $98.80 1v + 1.8c = 98.8 10v + 18c = 988 10v + 18(70 - v) =988 10v + 1260 - 18v = 988 -8v = -272 v = 34 ] User: Question 9 of 20 5.0 Points What is the solution of the system? Use substitution. x = –2y + 10 –6y = 6x – 6 z = –3x + 10y A. x = 9, y = –8, z = 114 B. x = –8, y = 9, z = 114 C. x = –8, y = 114, z = 9 D. x = 114, y = 9, z = –8 Weegy: A. x = 9, y = 8, z = 114 is the answer. User: Question 11 of 20 5.0 Points What is the solution of the system? Use elimination. 3x – 4y = 9 –3x + 2y = 9 A. (3, 9) B. (–27, –9) C. (–3, –6) D. (–9, –9) Weegy: D. ( 9, 9) User: Question 12 of 20 5.0 Points The local zoo has two water tanks for the elephant exhibit that are leaking One water tank contains 12 gal of water and is leaking at a constant rate of 3 gal/h. The second water tank contains 8 gal of water and is leaking at a constant rate of 5 gal/h. When will the two tanks have the same amount of water? Explain. Let x = the number of hours the tanks are filling and let y = the number of gallons in the tank. A. In 2 hours, because the solution to the system is (2,18). B. They will never have the same amount of water because the solution to the system is (–2,18). It is not possible to ... (More)
Question
Not Answered
Updated 7/10/2014 1:06:09 AM
4 Answers/Comments
y = x + 6
y = 2x
substitute y in the first equation:
2x = x + 6
2x - x = 6
x = 6,
y = 2(6) = 12
The solution for the system y = x + 6 y = 2x is (6, 12)
Added 7/10/2014 12:58:55 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [7/10/2014 1:24:33 AM]
x = -4y + 4
2x + 8y = 8
substitute x in the second equation:
2(-4y + 4) + 8y = 8
-8y + 8 + 8y = 8
-8y + 8y = 8 - 8
0 = 0
There are infinitely many solutions for the system x = -4y + 4 2x + 8y = 8
Added 7/10/2014 1:03:13 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [7/10/2014 1:24:58 AM]
3x – 4y = 9
–3x + 2y = 9
adding up equations the result is:
-2y = 18
y = -9
3x - 4(-9) = 9
3x + 36 = 9
3x = 9 - 36 = -27
x = -9
The solution set for the system 3x – 4y = 9 –3x + 2y = 9 is (-9, -9)
Added 7/10/2014 1:04:50 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [7/10/2014 1:25:33 AM]
There are no solution for the system y = –3x + 2 y = –3x + 4 since the two lines have the same slope and are parallel to each other.
Added 7/10/2014 1:06:09 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [7/10/2014 1:25:47 AM]
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