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Margaret [11]
3 years ago
6

C is directly proportional to D, when C-125 and D=5.

Mathematics
1 answer:
malfutka [58]3 years ago
8 0
C=K x D
125= k x 5 so k= 125/5 = 25

answer is C= 25D
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CD has endpoints C(-3, 4) and D(1, -2). Find the coordinates<br> of its midpoint.
Natalija [7]

Answer:

Midpoint (-1 , 1)

Step-by-step explanation:

Formula: (midpoint)

Let the point A(x , y) be the midpoint of CD.

x=\frac{x_c+x_D}{2} =\frac{-3+1}{2} =\frac{-2}{2} =-1

y=\frac{x_C + y_D}{2} =\frac{4+(-2)}{2} =\frac{2}{2} =1

Then

A(-1 , 1)

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2 years ago
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Unit activity: exponential and logarithmic functions
nirvana33 [79]

We will conclude that:

  • The domain of the exponential function is equal to the range of the logarithmic function.
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<h3>Comparing the domains and ranges.</h3>

Let's study the two functions.

The exponential function is given by:

f(x) = A*e^x

You can input any value of x in that function, so the domain is the set of all real numbers. And the value of x can't change the sign of the function, so, for example, if A is positive, the range will be:

y > 0.

For the logarithmic function we have:

g(x) = A*ln(x).

As you may know, only positive values can be used as arguments for the logarithmic function, while we know that:

\lim_{x \to \infty} ln(x) = \infty \\\\ \lim_{x \to0} ln(x) = -\infty

So the range of the logarithmic function is the set of all real numbers.

<h3>So what we can conclude?</h3>
  • The domain of the exponential function is equal to the range of the logarithmic function.
  • The domain of the logarithmic function is equal to the range of the exponential function.

If you want to learn more about domains and ranges, you can read:

brainly.com/question/10197594

3 0
2 years ago
Asap
adoni [48]
Lower Quartile-21
Upper Quartile-52
Interquartile Range- 31

Hope this helps !!
3 0
3 years ago
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Effectus [21]

9514 1404 393

Answer:

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Step-by-step explanation:

Where x represents the previous year's salary, its amount this year is said to be ...

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The equation is trying to reflect the fact that 7% of that is $3,290. The missing number is 2000:

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Solving for x, we find ...

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Sandra's salary the previous year was $45,000.

3 0
3 years ago
Use trial and improvement to find the solution to this positive equation
Novay_Z [31]
It's 3.01 sorry wrong question please forgive me
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