It seems like there are answer choices but you forgot to post them. If you want to simplify then
2*sqrt(7) - sqrt(28) = 2*sqrt(7) - sqrt(4*7)
2*sqrt(7) - sqrt(28) = 2*sqrt(7) - sqrt(4)*sqrt(7)
2*sqrt(7) - sqrt(28) = 2*sqrt(7) - 2*sqrt(7)
2*sqrt(7) - sqrt(28) = (2-2)*sqrt(7)
2*sqrt(7) - sqrt(28) = (0)*sqrt(7)
2*sqrt(7) - sqrt(28) = 0
So the whole complicated expression simplifies to 0 (zero)
This is because sqrt(28) = 2*sqrt(7) when you simplify sqrt(28)
Side Note: "sqrt" is shorthand for "square root"
Answer:
D $170
Step-by-step explanation:
you take the 260 and you plug it in for m and then solve
0.5(260) + 40 = 130 + 40
130 + 40 = 170
Find the pattern for every 8 years and you have your answer.
Here are a few rules with exponents that apply here:
- Raising a power to a power:

- Dividing exponents of the same base:

- Converting negative exponents to positive ones:

Firstly, solve the outer exponent:

Next, divide:

Next, convert the negative exponents:

<u>Your final answer is n^10/16m^6 , or B.</u>
Answer: -4
Step-by-step explanation:
Once you graph it, the solutions are where the graph meets the x axis.
This is at -4 and 9.