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mathematics
college mathematics for business
Questions and Answers of
College Mathematics For Business
In Problem find the domain and range of each function.f(x) = 15 - 20 |x|
In Problem find the vertex form of each quadratic function by completing the square.f(x) = -5x2 + 15x - 11
In Problem use point-by-point plotting to sketch the graph of each equation.xy = 12
For Problem rewrite in equivalent logarithmic form.36 = 62
In Problem for each polynomial function find the following:(A) Degree of the polynomial(B) All x intercepts(C) The y interceptf(x) = (x2 - 25) (x3 + 8)3
In Problem find the domain and range of each function.f(x) = 6|x|+ 9
Indicate whether each table in Problem specifies a function. Domain Range 3 5 1 2
In Problem write a brief verbal description of the relationship between the graph of the indicated function and the graph of y = x2.f(x) = x2 - 4x + 3
For Problem rewrite in equivalent logarithmic form.8 = 43/2
In Problem for each polynomial function find the following:(A) Degree of the polynomial(B) All x intercepts(C) The y interceptf(x) = (2x - 5)2 (x2 - 9)4
In Problem find the domain and range of each function.f(x) = -8 + 3√x
In Problem write a brief verbal description of the relationship between the graph of the indicated function and the graph of y = x2.g(x) = x2 - 2x - 5
In Problem solve for x.5x + 3 = x + 23
Solve 2x + 3 = 7x - 11.
Identify the graph(s) of lines with a negative slope.Problem refer to graphs (A)–(D). -5 (A) (B) -5 -5 (C) (D)
Identify the graph(s) of lines with a positive slope.Problem refer to graphs (A)–(D). -5 (A) (B) -5 -5 (C) (D)
In Problem solve for x.7x - 6 = 5x - 24
Identify the graph(s) of any lines with slope zero.Problem refer to graphs (A)–(D). -5 (A) (B) -5 -5 (C) (D)
In Problem solve for x.9(4 - x) = 2(x + 7)
Solve 2x + 5y = 9 for y.
In Problem solve for x.3(x + 6) = 5 - 2(x + 1)
Identify the graph(s) of any lines with undefined slope.Problem refer to graphs (A)–(D). -5 (A) (B) -5 -5 (C) (D)
Solve 3x - 4y = 7 for x.
At low altitudes, the altitude of a parachutist and time in the air are linearly related. A jump at 2,880 ft using the U.S. Army’s T-10 parachute system lasts 120 secs.(A) Find a linear model
Solve Problem and graph on a real number line.4y - 3 < 10
Solve Problem and graph on a real number line.-1 < -2x + ≤ 3
In Problem write the interval as an inequality or double inequality.(4, 13)
In Problem write the interval as an inequality or double inequality.(-3, 5]
Sketch a graph of 3x + 2y = 9.
In Problem sketch a graph of each equation in a rectangular coordinate system.8x - 3y = 24
In Problem write the interval as an inequality or double inequality.(-2, 7)
Write an equation of a line with x intercept 6 and y intercept 4. Write the final answer in the form Ax + By = C.
A golf course charges $52 for a round of golf using a set of their clubs, and $44 if you have your own clubs. If you buy a set of clubs for $270, how many rounds must you play to recover the cost of
In Problem write the interval as an inequality or double inequality.[-6, -1]
Sketch a graph of 2x - 3y = 18. What are the intercepts and slope of the line?
In Problem write the interval as an inequality or double inequality.(- ∞, 4]
Write an equation in the form y = mx + b for a line with slope - 2/3 and y intercept 6.
One employee of a computer store is paid a base salary of $2,000 a month plus an 8% commission on all sales over $7,000 during the month. How much must the employee sell in one month to earn a total
In Problem find the slope and y intercept of the graph of each equation.y = -5/2x - 9
In Problem write the interval as an inequality or double inequality.(9, ∞)
Write the equations of the vertical line and the horizontal line that pass through (-6, 5).
Write the equation of a line through each indicated point with the indicated slope. Write the final answer in the form y = mx + b. 2 (А) т :(-3, 2) (В) т — 0; (3, 3) m %3D 3'
In Problem find the slope and y intercept of the graph of each equation.y = - 10/3x + 4
In Problem find the slope and y intercept of the graph of each equation. y 4 3
Table 9 contains the state population and the number of licensed drivers in the state (both in millions) for the most populous states in 2014. The regression model for this data isy = 0.62x +
In Problem write the solution set using interval notation.-1 ≤ x < 5
Write the equation of the line through the two indicated points. Write the final answer in the form Ax + By = C. (A) (-3, 5), (1, -1) (B) (-1, 5), (4, 5) (C) (-2, 7), (-2, -2)
A linear regression model for the net sales data in Table 10 isS = 15.85t + 250.1where S is net sales and t is time since 2000 in years.(A) Draw a scatter plot of the data and a graph of the model on
In Problem find the slope and y intercept of the graph of each equation. y 5 %3D 2
In Problem write the solution set using interval notation.2x < 18
Solve Problem3x + 25 = 5x
Solve Problem 6. 6
In Problem find the slope and x intercept of the graph of each equation.y = 2x + 10
A linear regression model for the operating income data in Table 10 isI = 0.82t + 15.84where I is operating income and t is time since 2000 in years.(A) Draw a scatter plot of the data and a graph of
Ethylene glycol and propylene glycol are liquids used in antifreeze and deicing solutions. Ethylene glycol is listed as a hazardous chemical by the Environmental Protection Agency, while propylene
Solve Problem х — 2 + 1 4 5x 4 +х 3 2.
In Problem write the solution set using interval notation.3x ≥ 12
In Problem find the slope and x intercept of the graph of each equation.y = -4x + 12
In Problem write the solution set using interval notation.15 ≤ -3x < 21
A naturalist estimated the total number of rainbow trout in a certain lake using the capture–mark– recapture technique. He netted, marked, and released 200 rainbow trout. A week later, allowing
In Problem find the slope and x intercept of the graph of each equation.8x - y = 40
In Problem find the solution set. 4 8.
Solve Problem0.05x + 0.25(30 - x) = 3.3
In Problem write the solution set using interval notation.-8 < -4x ≤ 12
In Problem find the slope and x intercept of the graph of each equation.3x + y = 6
Solve Problem0.2(x - 3) + 0.05x = 0.4
In Problem find the solution set. 2 4 = 3 m 3
The IQ (intelligence quotient) is found by dividing the mental age (MA), as indicated on standard tests, by the chronological age (CA) and multiplying by 100. For example, if a child has a mental age
In Problem find the slope and x intercept of the graph of each equation.-6x + 7y = 42
Solve Problem and graph on a real number line.2(x + 4) > 5x - 4
Table 12 lists fall undergraduate enrollment by gender in U.S. degree-granting institutions. The figure contains a scatter plot and regression line for each data set, where x represents years since
In Problem find the slope and x intercept of the graph of each equation.9x + 2y = 4
In Problem find the solution set. y 3 -5 2
Table 13 lists fall graduate enrollment by gender in U.S. degree granting institutions. The figure contains a scatter plot and regression line for each data set, where x represents years since 1980
In Problem find the solution set. 5 -4 6
Solve Problem and graph on a real number line.3(2 - x) - 2 ≤ 2x - 1
Solve Problem and graph on a real number line. x + 3 4 + x 2 - x > 5 2 8 3
In Problem write an equation of the line with the indicated slope and y intercept.Slope = 2y intercept = 1
Problem require a graphing calculator or a computer that can calculate the linear regression line for a given data set.Find a linear regression model for the data on average annual temperature in
In Problem write an equation of the line with the indicated slope and y intercept.Slope = 1y intercept = 5
In Problem write an equation of the line with the indicated slope and y intercept.Slope = - 1/3y intercept = 6
Solve Problem and graph on a real number line.-5 ≤ 3 - 2x < 1
In Problem find the solution set.2u + 4 = 5u + 1 - 7u
In Problem write an equation of the line with the indicated slope and y intercept.Slope = 6/7y intercept = -9/2
Solve Problem and graph on a real number line.-1.5 ≤ 2 - 4x ≤ 0.5
In Problem use the graph of each line to find the x intercept, y intercept, and slope. Write the slope-intercept form of the equation of the line. -5
In Problem use the graph of each line to find the x intercept, y intercept, and slope. Write the slope-intercept form of the equation of the line. -5
In Problem find the solution set.-3y + 9 + y = 13 - 8y
In Problem find the solution set.10x + 25(x - 3) = 275
Problem require a graphing calculator or a computer that can calculate the linear regression line for a given data set.Table 16 contains price–supply data and price–demand data for corn. Find a
Describe the graphs of x = -3 and y = 2. Graph both simultaneously in the same coordinate system.
In Problem use the graph of each line to find the x intercept, y intercept, and slope. Write the slope-intercept form of the equation of the line. -5
In Problem find the solution set.-3(4 - x) = 5 - (x + 1)
In Problem use the graph of each line to find the x intercept, y intercept, and slope. Write the slope-intercept form of the equation of the line. -5
Problem require a graphing calculator or a computer that can calculate the linear regression line for a given data set.Table 17 contains price–supply data and price–demand data for soybeans. Find
Describe the lines defined by the following equations:(A) 3x + 4y = 0 (B) 3x + 4 = 0(C) 4y = 0 (D) 3x + 4y - 36 = 0
In Problem find the solution set.3 - y ≤ 4(y - 3)
In Problem find the solution set. 6. 6
In Problem find the solution set.x - 2 ≥ 2(x - 5)
In Problem sketch a graph of each equation or pair of equations in a rectangular coordinate system.y = -2/3x - 2
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