Question

Question 4 (Multiple Choice Worth 1 points)

[02.06]

Which of the following is an equivalent form of the compound inequality −22 > −5x − 7 ≥ −3?

−5x − 7 < −22 and −5x − 7 ≥ −3

−5x − 7 > −22 and −5x − 7 ≥ −3

−5x > −22 and −7 ≥ −3

−5x − 7 < −22 and −5x − 7 ≤ −3

Question 5 (Multiple Choice Worth 1 points)

[02.06]

Solve the compound inequality 6b < 24 or 4b + 12 > 4.

b < 4 or b > −2

b < 4 or b > 4

b < 4 or b > 2

b > 4 or b < −2

Answer 1

@myininaya
@

Answer 2

@Hero @jdoe0001

Answer 3

@ElisaNeedsHelp

Answer 4

solve for x from −22 > −5x − 7

Answer 5

@jigglypuff314 can you run me through that

Answer 6

sure :)
to solve for x from −22 > −5x − 7 first add 5x to both sides
+5x +5x
so 5x - 22 > -7 then add 22 to both sides
+22 +22
5x > 15 then divide both sides by 5
what do you think you would get? :)

Answer 7

x>3

Answer 8

yes! :)

then you would use the same concepts to solve for x from −5x − 7 ≥ −3

Answer 9

then i would get x>2

Answer 10

not quite :)

ohhh... sorry... I just realized what the question was asking for >,<
erm... the two parts that I asked you to solve
would make up your answer

Answer 11

so it would be b.

Answer 12

not quite :)

−22 > −5x − 7 is the same as -5x - 7 < -22

Answer 13

so it would be d.!

Answer 14

careful :)
−5x − 7 ≥ −3

Answer 15

a.?

Answer 16

yep :)

Answer 17

thnx can u help me with the 2nd one?

Answer 18

solve for b from 6b < 24 (divide both sides by 6)

Answer 19

thnx

Answer 20

that's not all
you would also have to solve for b from 4b + 12 > 4
subtract 12 from both sides
and divide both sides by 4

Answer 21

b < 4 or b > −2

Answer 22

Right?

Answer 23

correct! :)

Answer 24

can u help with another

Answer 25

The label on the car's antifreeze container claims to protect the car between −30°C and 130°C. To convert Celsius temperature to Fahrenheit temperature, the formula is C = 5 over 9 (F − 32). Write and solve the inequality to determine the Fahrenheit temperature range at which this antifreeze protects the car.

−30 > 5 over 9 (F − 32) > 130; −22 > F > 266

−30 < 5 over 9 (F − 32) < 130; −22 < F < 266

−30 < 5 over 9 (F − 32); −22 < F

5 over 9 (F − 32) < 130; F < 266

Answer 26

C is between -30 and 130
so -30 < C < 130
C = (5/9)(F-32)
so you get -30 < 5 over 9 (F-32) < 130 follow so far? :)