Answer:
The missing number is 21
Step-by-step explanation:
-12 + x = 9
x = 9 + 12
x = 21
Answer:
B
Step-by-step explanation:
To do this, you need to complete the square.

Therefore, the correct answer is choice B. Hope this helps!
2^2 - 5t + 12 = 0
4 - 5t + 12 = 0
-5t + 16 = 0
-5t = -16
t = 16/5
Answer: 16/5 in fraction form or 3.2 in decimal form
Answer list the data sets
Step-by-step explanation:
Answer: Yes
Step-by-step explanation: Calculator