Answer: R=8
Step-by-step explanation: R-7=1, R+7=1+7, R=8.
Answer:
8.1
Step-by-step explanation:
2x^2 -9 = 121
+9 +9
2x^2 = 130
/2 /2
x^2 = 65
x= sqrt (65)
x= 8.06225...
x = 8.1
Example A: a/2
A fraction shows division as well! I’m not sure about the rest though....
C real numbers is the answer
