Out of the 240 students polled, 33 stated they were planning on joining the work force immediately after graduation. If there are a total of 840 students in the high school, what is a reasonable approximation of the number of high school students who plan to enter the work force after graduation?

Total number of students joining workforce after graduation ≈ 116

Step-by-step explanation:

Number of students polled = 240

Number of students joining workforce = 33

Percentage of students joining workforce (polled):

Total Number of students in high school = 840

Percentange of students joining workforce will eventually remain the same

that is 13.75%

Find 13.75% of 840 to find the total number of students from high school which will be joining workforce after graduation:

Total number of students joining workforce after graduation ≈ 116

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

i need a picture

step-by-step explanation: