HELP 50 POINTS a. Is 8.3 a solution of 73.8 < 9x? =

b. is 6.5 a solution of 12x < 78?

c. Is 7 a solution of 9x > 45?

d. is 17 a solution of 19 - x >2?
=
e. is 6 a solution of x + 12 > 18?

Well let's plug in

73.8 < 9(8.3)

73.8 < 74.7

The alligator always want to eat the bigger number so yes. 8.3 is a solution

Step-by-step explanation:

Step-by-step explanation:

step 1. the answer is no - to all of them

step 2. 12x < 78

step 3. x < 6 5

step 4. the answer is x is less than 6.5 but not equal to

step 5. if you had 12x <= 78 then 6.5 would be a solution because it would also be equal to.

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