The answer would be be B
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You first factor out 54 and thats 3^2 * 6
(The factor of a # is what you multiply to get the answer)
You then do the same to x^9 and y ^7
After that you should have square root of [3^2 * 6x^8 * xy^6 * y]
When you combine this you will get 3x^4 y^3 sqre root [6xy]
21 is the answer i think idk try dividing them all or finindng something or look up how to find a standard deviation
Answer:
400 square meters
Step-by-step explanation:
We can first solve this problem with each unit representing 1 centimeter, and then scale up at the very end. The shape that we have a parallelogram. The base is 8 cm, and the height is 2 cm. The formula for the area of a parallelogram is just 
, so the area of the parallelogram is 16 square centimeters. However, now we scale up. Since each centimeter correlates to 5 meters, each little box will correlate to 25 square meters. Therefore, 
square meters is our answer
At x = -4 and -8
Take the derivative of the given equation to find rate of change of the graph.
f'(x) = 6x^2 + 72x + 192
At a horizontal tangent, f'(x) = 0, so set the equation equal to 0 and solve. Eventually you get x = -4 and -8
Their ages are 24 years old each.
