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sladkih [1.3K]
2 years ago
9

Will give 30 points to who answers!

Mathematics
2 answers:
ale4655 [162]2 years ago
6 0
Step-by-step in this answer is square root is 3
GalinKa [24]2 years ago
3 0
Sqrt5/3sqrt15 multiply by sqrt15/sqrt15
sqrt(5x15)/(3x15)=sqrt75/45
sqrt75=sqrt25 x sqrt3= 5sqrt3
5sqrt3/45
=sqrt3/9
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Jennifer has a hair ribbon that is 12 centimeters long. What is the length of the ribbon in millimeters? Use the number of zeros
leonid [27]

Answer:

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3 years ago
The equation y + 6 = one-third (X minus 9) is written in point-slope form. What is the equation written in slope-intercept form?
rosijanka [135]

Answer:

y = \frac{1}{3} x - 9

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c

Given

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y + 6 = \frac{1}{3} x - 3 ( subtract 6 from both sides )

y = \frac{1}{3} x - 9 ← in slope- intercept form

3 0
3 years ago
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3 years ago
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F(x) = lnx/x
My name is Ann [436]
f(x) = \frac{lnx}{x}

(a) f'(x) = \frac{d}{dx}[\frac{lnx}{x}]
Using the quotient rule:
f'(x) = \frac{\frac{1}{x} \cdot x - lnx}{x^{2}}
f'(x) = \frac{1 - lnx}{x^{2}}

For maximum, f'(x) = 0;
\frac{1 - lnx}{x} = 0
lnx = 1, x = e

(b) <em>Deduce:
</em>e^{x} \geq x^{e}, x > 0
<em>
Soln:</em> Since x = e is the greatest value, then f(e) ≥ f(x) > f(0)
\frac{ln(e)}{e} \geq \frac{lnx}{x}
\frac{1}{e} \geq \frac{lnx}{x}, since ln(e) is simply equal to 1

Now, since x > 0, then we don't have to worry about flipping the signs when multiplying by x.
\frac{x}{e} \geq lnx
x \geq elnx
x \geq ln(x^{e})

Taking the exponential to both sides will cancel with the natural logarithmic function in the right hand side to produce:
e^{x} \geq e^{ln(x^{e}})
e^{x} \geq x^{e}, as required.
3 0
3 years ago
Identify the graph of the equation y = 2x2 − 2x + 1.
Schach [20]

Answer:

im pretty sure it's c

Step-by-step explanation:

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