Answer:
y = -5
Step-by-step explanation:
-3x +9y = -57
Let x = 4
-3*4 +9y = -57
-12 +9y = -57
Add 12 to each side
-12+12 +9y = -57+12
9y = -45
Divide each side by 9
9y/9 = -45/9
y = -5
<h2>
Answer:</h2><h2>The probability of selecting a defective roll followed by another defective roll =

</h2>
Step-by-step explanation:
The total number of rolls in a box = 15
The number of defective items = 3
Two rolls are to be selected, one after the other. The probability of selecting a defective roll followed by another defective roll = ?
The probability that the first roll is detective = 
The probability that the second roll is detective = 
Required probability = 
= 
Problem: Square root of x<12
To solve that, we square both size, x<144
Choices that is less than 144 are the correct answers
Answer:
i believe its c but im not sure
Step-by-step explanation: