Mathematics, 20.07.2019 07:30 skyemichellec
The steps for determining the center and radius of a circle using the completing the square method are shown below: step 1 [original equation]: x2 + 4x + y2 + 2y = 20 step 2 [group like terms]: (x2 + 4x) + (y2 + 2y) = 20 step 3 [complete the quadratics]: (x2 + 4x + 4) + (y2 + 2y + 1) = 20 + (4 + 1) step 4 [simplify the equation]: (x2 + 4x + 4) + (y2 + 2y + 1) = 25 step 5 [factor each quadratic]: (x + 2)2 + (y + 1)2 = 52 step 6 [identify the center and radius]: center = (2, 1) radius = 5 which step is incorrect, and how can it be fixed? a. step 3, replace 1 with 2 b. step 5, replace 2 with 4 and replace 1 with 2 c. step 6, replace (2, 1) with (−2, −1) d. all steps are correct.
Answers: 1
Mathematics, 21.06.2019 19:00
When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30
Answers: 1
Mathematics, 21.06.2019 22:30
Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?
Answers: 1
Mathematics, 21.06.2019 23:10
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. find the lateral area for the prism. l.a. = 0123456789
Answers: 3
The steps for determining the center and radius of a circle using the completing the square method a...
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