Answer:
k = -5
Step-by-step explanation:
The variable is k
9k + 1 = -9 + 7k
-7k -1
2k = -10
2k/2 -10/2
k = -5
:)
Answer: John has an object suspended in the air. It has a mass of 50 kilograms and is 50 meters above the ground. Calculate the object's potential energy.
Step-by-step explanation:
Calculate the potential energy for a 2 kg basketball dropping from a height of 3.5 meters with a velocity of 9.8 m/sec².
GIVEN:

remember:

And

SOLVE:
start by multiplying the factors:

simplify by combing like terms. Most terms subtract off, leaving:

This can be factored, but it is not a perfect square, which is really what we need to take the square root.

I'm not exactly sure what form they want the answer in...
so taking the square root:

so my best answer is:

or the more factored form:

I'm not sure how else to solve it. Taking the square root doesn't work out super well, so I left it in the most simple form I could.
sorry for not coming to a definitive answer!