Answer:
The answer to your question is the last choice
Step-by-step explanation:
Process
1.- Use the exponent law "Power"
2.- Simplify
3.- Use the exponent law "Negative exponent"
4.- Conclusion
He should have applied the exponent -3 to 4 to get
-4x-x-2-9=-1
or,-5x=10
or,x=-2
Answer:
b
Step-by-step explanation:
Try using the formula Pi (r) squared (1.5cm)
Answer:
3/2
Step-by-step explanation:
21/5×5/14
105/70
divide by 5
21/14
divide both by 7
3/2