Question: Solve the equation graphically and symbolically. X +6=1 -4x Graph the equation. Click to X enlarge graph (Use the graphing tool to graph the intersection.)
Solve the equation graphically and symbolically. X +6=1 -4x Graph the equation. Click to X enlarge graph (Use the graphing tool to graph the intersection.) example Get more help - Clear all Check answer OLDBO 2:15 PM a 9/8/2022on 2.2 Homework Question 22, 2.2.115 HW Score: 68.97%, 20 of 29 points O Points: 0 of 1 Save The per capita (per person) income from 1985 to 2010 can be modeled by K f(x) = 2000(x - 1985) + 10,000 where x is the year. Determine the year when the per capita income was $14,000. The per capita income was $14,000 in the year View an example Get more help - Clear all Check answer OLDBOX 2:15 PM 9/8/20222.2 Homework Question 23, 2.2.117 HW Score: 68.97%, 20 of 29 points O Points: 0 of 1 Save During the 1980s, sales of compact discs surpassed record sales. From 1985 to 1990 K sales of compact discs in millions can be modeled by the formula f(x) = 48.3(x -1985) +7.3, whereas sales of LP records in millions can be modeled by g(x) = - 33.7(x -1985) + 48.3. Approximate the year x when sales of LP records and compact discs were equal by using the intersection-of-graphs method. Each had equal sales in the year] (Round to the nearest whole number as needed.) w an example Get more help - Clear all Check answer OLDBO 2:15 PM 9/8/2022mework Question 24, 2.2.123 HW Score: 68.97%, 20 of 29 points Part 1 of 2 O Points: 0 of 1 Save Approximately 4.3% of all cancer cases diagnosed in a particular year were skin cancer. (a) If x cases of cancer were diagnosed, how many of these were skin cancer? (b) There were 71,000 cases of skin cancer diagnosed in that year. Find the total number of cancer cases in that year. (a) There were | cases of skin cancer. (Use integers or decimals for any numbers in the expression.) xample Get more help - Clear all Check answer OLDBOX 2:15 PM 9/8/2022Homework Question 25, 2.2.125 HW Score: 68.97%, 20 of 29 points O Points: 0 of 1 Save Suppose that a lawn can be raked by one gardener in 3 hours and by a second gardener in 4 hours. How long it will take the two gardeners to rake the lawn working together? Working together, the two gardeners can rake the garden in about | | hours. (Round to two decimal places as needed.) example Get more help - Clear all Check answer 2:15 PM 9/8/2022on 2.2 Homework Question 26, 2.2.129 HW Score: 68.97%, 20 of 29 points Part 1 of 2 Save O Points: 0 of 1 A car went 358 miles in 6 hours, traveling part of the time at 54 miles per hour and part of the time at 64 miles per hour. How long did the car travel at each speed? K The car travels hours at 54 miles per hour. (Type an integer or a decimal.) View an example Get more help - Clear all Check answer 2:15 PM 9/8/2022ction 2.2 Homework Question 27, 2.2.133 HW Score: 68.97%, 20 of 29 points O Points: 0 of 1 Save A person 6-it tall casts a shadow 10-ft long. At the same time, a nearby tree casts a shadow 31-it long. Find the height of the tree. K The tree's height is |ft. (Round to the nearest tenth.) View an example Get more help - Clear all Check answer OLDBOX A 2:16 PM 9/8/2022n 2.2 Homework Question 28, 2.2.143 HW Score: 68.97%, 20 of 29 points Part 1 of 3 O Points: 0 of 1 Save In 2011 online sales were $193 billion, and in 2014 they were $244 billion. K (a) Find a linear function S that models these data, where S is the sales in billions of dollars and x is the year. Write S(x) in slope-intercept form. (b) Interpret the slope of the graph of S. (c) Determine when online sales were $227 billion. (a) Write S(x) in slope-intercept form. S(x) = View an example Get more help - Clear all Check answer om/Player/Player.aspx?cultureld=&theme=math.. OLDBOX 2:16 PM 9/8/202212.2 Homework Question 29, Putting it All Together 2.2 HW Score: 68.97%, 20 of 29 points O Points: 0 of 1 Save K Conditional equation |Distributive property | Identity |Multiplication property |Contradiction |Linear equation|The x-intercept method |Addition property |Percentages Intersection-of-graphs method Drag each comment given above into the area besides the appropriate concept. Concept Explanation An equation that can be written as ax + b =0, a #0. a = b is equivalent to a + c = b + c. a = b is equivalent to ac = bc, c#0. a(b + c) = ab + ac and a(b - c) = ab - ac An equation that is true for all (meaningful) values of the variable An equation that has no solutions An equation that is satisfied by some, but not all, of the values of the variable R R R percent of x equals- 100 %, where 100 is the decimal form for R percent. To solve f(x) = g(x), graph y, = f(x) and yz = g(x). Find any points of intersection. The solution set includes x-values of the points where the graph of y, intersects the graph of y2- Write the equation as h(x) = 0. Graph y, = h(x). Solutions correspond to the x-coordinates of the x-intercepts. tructor Clear all Final check m/Player/Player.aspx?cultureld=&theme=math... OLDB a 2:16 PM 9/8/2022
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