Amerchant surveyed 500 people to determine the way they learned about an upcoming sale. the survey showed that 290 learned about the sale from the radio, 250 from television, 250 from the newspaper, 140 from radio and television, 130 from radio and newspapers, 120 from television and newspapers, and 70 from all three sources. how many people learned of the sale from radio or television but not the newspaper?

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

region b will make the inequalities y < 2x + 1 and y > -x - 2 true ⇒ answer a

step-by-step explanation:

* lets study the graph and the inequality to solve the question

- the inequality y > -x - 2

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = -2 that means the line intersect the y-axis at point (0 , -2)

∵ the sign of the inequality is >

∴ we shad the part over the line

  region a and b

- the inequality y < 2x + 1

∵ the form of the inequality is y > mx + c , m is the slope of the line

  and c is the y-intercept (the line intersect y-axis at point (0 , c)

∴ c = 1 that means the line intersect the y-axis at point (0 , 1)

∵ the sign of the inequality is <

∴ we shad the part under the line

  region b and c

∵ the common region between the two lines is region b

∴ region b will make the inequalities y < 2x + 1 and y > -x - 2 true

i have no idea just need points sorry

step-by-step explanation: