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Answer:
(x - √7*√x) / (x - 7)
Step-by-step explanation:
I suppose your expression is √x / (√x + √7)
(√x * (√x - √7)) / ((√x + √7) * √x - √7)) = (√x * √x - √7 * √x) / (x - 7)
= (x - √7*√x) / (x - 7)
Multiply all with 5 to get rid of fraction.
5( 4/5x + 5 ) < 5(-3)
5(4/5x) + 25 < -15
4x + 25 < -15
Separate x
4x < -15 -25
4x < -40
x < - 10
:D
Answer:8
Step-by-step explanation:
72/9=8
<h3>
Answer: 3pi (choice C)</h3>
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Explanation:
I'm assuming you meant to say
y = (3/2)*tan( (1/3)x )
If so, then that equation is in the form
y = A*tan(Bx)
The B coefficient is B = 1/3 and it directly ties together to the period T.
T = pi/B
T = pi/(1/3)
T = pi*(3/1)
T = 3pi .... answer is choice C
Side note: This formula only works for tangent and cotangent functions.
