Inequalities are just like equations it's just that the sign flips anytime you multipliy or divide by a negative number
1.
![t - 7 < - 15](https://tex.z-dn.net/?f=t%20-%207%20%3C%20%20-%2015)
First Add 7 to both sides
![t + (-7 + 7)< ( - 15 + 7) \\ t < - 8](https://tex.z-dn.net/?f=t%20%2B%20%20%28-7%20%2B%207%29%3C%20%20%28%20-%2015%20%2B%207%29%20%5C%5C%20t%20%3C%20%20-%208%20)
2.
![b + 12 < 18](https://tex.z-dn.net/?f=b%20%2B%2012%20%3C%2018)
First Subtract 12 From Both Sides
Answer:
D
Step-by-step explanation:
The highest point is the vertex, (-3,5), making all y-values less than or equal to 5.
Answer:
Surface Area = 748 centimeters^2
Step-by-step explanation:
9 cm
23.5 cm
5 cm
Surface Area = 2×(9×23.5 + 9×5 + 23.5×5)
= 748 centimeters^2
Answer: Yes, 2.125 is a rational number.
Step-by-step explanation: