Answer:
Step-by-step explanation:
-8
The inside of the radical must be greater than or equal to zero. When you plug in c=3, the answer is 5 >0. When c=-6, -4 <0. Therefore c=3 is true.
Answer: x= -10 and Y=-20
Step-by-step explanation:
If y is equal to 2x that mean you need to substitute Y=5x+30 like this 2x=5x+30
Answer: y²z⁴ / x¹²
Explanation:
1) Given expression to simplify:

2) Property: power of power:

3) Property: product of powers with the same base

4) Add the exponents

5) Pass the negative power to the denominator:

The exponent on x is 12. The exponent on y is 2. The exponent on z is 4.
Ok what do you need help with