Answer:

Step-by-step explanation:
We want to simplify:

We first simplify the numerator to obtain:

Next the quotient rule:

We apply this quotient rule to get:

Simplify exponents:

Therefore the given expresion simplifies to:

Answer:
about 7g/cm^3
Step-by-step explanation:

where p is density is equal to mass (5g) divided by volume (.689cm^3).
or

= 7.25 or approximately 7g/cm^3
or approximately .007kg/cm^3 dependent on what metric they want their answer in.
Answer:
0.74
Step-by-step explanation:
The standard deviation of a data set is the sqaure root of the variance, so first we must find the variance. The equation for variance is:
σ² = ![\frac{{(x_{1}-[x bar] )}^{2}+...+{(x_{n}-[x bar]) }^{2}}{n}](https://tex.z-dn.net/?f=%5Cfrac%7B%7B%28x_%7B1%7D-%5Bx%20bar%5D%20%29%7D%5E%7B2%7D%2B...%2B%7B%28x_%7Bn%7D-%5Bx%20bar%5D%29%20%7D%5E%7B2%7D%7D%7Bn%7D)
x = number in the data set
xbar = median of the data set
n = number of terms
Plugging in the given values, the equation for the variance of this number set is:
σ² = 
Solving:
= 
= 
σ² = 0.546875
Since the standard devianation is the sqaure root of the variance, we'll sqaure 0.546875:

= 0.73950997288745
= 0.74 (rounded)
hope this helps!
<span>Part A: Describe the two factors in this expression.
9 and 7+ 2x
</span><span>Part B: How many terms are in each factor of this expression?
2 terms
</span><span>Part C: What is the coefficient of the variable term? 2</span>