subject
Mathematics, 10.12.2019 06:31 lin550

Marika solved the equation (6x + 15)2 + 24 = 0. her work is below. 1. (6x + 15)2 = –24 2. startroot (6 + 15) squared endroot = startroot negative 24 endroot 3. 6x + 15 = negative 2 startroot 6 endroot 4. 6x = negative 2 startroot 6 endroot – 15 5. x = startfraction negative 2 startroot 6 endroot minus 15 over 6 endfraction analyze marika’s steps. which statement is true about her work? in step 2, marika should have simplified startroot negative 24 endroot to be 4 startroot negative 6 endroot. there are no real solutions to this equation because the square root of a negative number is not a real number. there should be two real solutions to this equation because startroot negative 24 endroot = plus or minus 2 startroot 6 endroot. marika correctly solved this equation.

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 18:50
Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15
Answers: 1
question
Mathematics, 21.06.2019 19:50
Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.
Answers: 3
question
Mathematics, 21.06.2019 23:30
Find the arc length of the semicircle. 7the grade
Answers: 1
question
Mathematics, 21.06.2019 23:50
Determine the area of a triangle with (see picture below)
Answers: 1
You know the right answer?
Marika solved the equation (6x + 15)2 + 24 = 0. her work is below. 1. (6x + 15)2 = –24 2. startroot...
Questions
question
Mathematics, 20.02.2021 01:00
question
World Languages, 20.02.2021 01:00
question
Mathematics, 20.02.2021 01:00
question
Mathematics, 20.02.2021 01:00
question
Mathematics, 20.02.2021 01:00
Questions on the website: 13722361