Answer:
80
Step-by-step explanation:
From the given diagram;
KN = NM
9x - 5 = 7x + 7
9x - 7x = 7 + 5
2x = 12
x = 12/2
x = 6
Since KM= 2KL
KM = 2(6x+4)
KM = 12x + 8
KM = 12(6)+8
KM = 72+8
KM = 80
Hence the length of KM is 80
Answer:
<u>The rate of decreasing of the length is 0.25 cm/s.</u>
Step-by-step explanation:
The surface area of the ice cube is:
Where x is the side of the cube.
Let's take the derivative of A with respect to "t" to get the rate of change.
We know that dA/dt = 6 cm²/s and x is 2 cm, so we just need to solve it for dx/dt which is the rate change of the length.
Therefore, <u>the rate of decreasing of the length is 0.25 cm/s.</u>
I hope it helps you!
B. subtraction property of equality
hope this helps!
9514 1404 393
Answer:
- as written: none
- perhaps intended: 0
Step-by-step explanation:
The expression written here is interpreted according to the Order of Operations as ...
8x -(5/6)x
This reduces to (7 1/6)x, which is defined for all real numbers.
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Maybe you intended the expression ...
(8x -5)/(6x)
This expression is undefined where its denominator is zero, at x = 0.