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Helen [10]
3 years ago
5

Differentiating Functions of Other Bases In Exercise, find the derivative of the function.

Mathematics
1 answer:
zimovet [89]3 years ago
6 0

Answer:

y' = -\frac{1}{2.3x}

Step-by-step explanation:

The derivative of a*x^{n} is a*n*x^{n-1}. The derivative of 3x^{-1} is -3x^{-2}, for example.

Derivative of the log function:

y = \log_{a}{f(x)}

Has the following derivative

y' = \frac{f'(x)}{\ln{a}*f(x)}

In this problem, we have that:

y = \log_{10}{\frac{3}{x}}

So

a = 10, f(x) = \frac{3}{x} = 3x^{-1}, f'(x) = -3x^{-2}

The derivative of the function is:

y' = \frac{f'(x)}{\ln{a}*f(x)}

y' = \frac{-3x^{-2}}{2.3*3x^{-1}}

y' = -\frac{1}{2.3x}

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Consider the line 7x+9y=5
alisha [4.7K]

Answer:

The slope of a line parallel to this line will be: -7/9

The slope of the perpendicular line will be:

\frac{-1}{\frac{-7}{9}}=\frac{9}{7}

Step-by-step explanation:

We know the slope-intercept form

y=mx+b

Here,

  • m is the slope
  • b is the y-intercept

Given the equation

7x+9y=5

simplifying to write in the lope-intercept form

y=-\frac{7}{9}x+\frac{5}{9}

Thus, the slope of the line is: -7/9

The slope of a line parallel to the line:

We have already determined that the slope of the line is: -7/9

  • We know that the parallel lines have the same slope.

Thus, the slope of a line parallel to this line will be: -7/9

The slope of a line perpendicular to the line:

We have already determined that the slope of the line is: -7/9

As we know that the slope of the perpendicular line is basically the negative reciprocal of the slope of the line.

Thus,  the slope of the perpendicular line will be:

\frac{-1}{\frac{-7}{9}}=\frac{9}{7}

4 0
3 years ago
PLEASE ANSWER!!
s344n2d4d5 [400]
D
{x}^{2}  + 2xy \\  { ( - 3)}^{2}  + 2( - 3)(5) \\ 9 + 2( - 15) \\ 9 + ( - 30) \\  - 21
7 0
3 years ago
Find the value of x and the value of y for which (x,23) and (18,y) ate the points on the graph y=0.5x+15
shutvik [7]

Answer:

x=16; y=24

Step-by-step explanation:

for (x,23), 23=0.5x+15

x=16

for (18xy), y=0.5*18+15=24

8 0
3 years ago
Attempt 1 of 1
devlian [24]

Answer:

Yee yee delete this i just wanted points

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
If f(x) varies directly with x and f(x) = 4 when x = 12, then what is the value of f(x) when x = 60?
ANTONII [103]
ANSWER

f(60)=3\times60=180

EXPLANATION
We were given that
f(x)
varies directly as
x.

We can write this mathematically as,

f(x) \propto \: x.

This implies that,

f(x) = kx
where k is the constant of variation.

f(4)=4k

This implies that,

4k=12

k = 3

The equation becomes

f(x)=3x

When x=60

f(60)=3\times60=180
6 0
3 years ago
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