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Kaylis [27]
3 years ago
10

Suppose c and d vary inversely, and d = 2 when c = 17.

Mathematics
1 answer:
anzhelika [568]3 years ago
5 0
Given:
d = 2 
c = 17
a) 
Inverse equation is like this:

c = k/d

where k is the constant value.

17 = k/2
17 * 2 = k
34 = k

b) 

c = k/d
c*d = k
d = k/c
d = 34/68
d = 0.5

The value of d is 0.50

To check:

c = k/d
c = 34 / 0.5
c = 68
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Yun was trying to factor 7x^2-14x7x
disa [49]

the width of Yun's area model is 7x units or ( x-2 )units .

<u>Step-by-step explanation:</u>

Here we have , Yun was trying to factor 7x^2-14x.  He found that the greatest common factor of these terms was 7x and made an area model:  What is the width of Yun's area model. Let's find out:

We know that area of rectangle :

⇒ Area = length(width)  .........(1)

Now , According to question we have

⇒ Area = 7x^2-14x

⇒ Area = 7x(x-2)

Comparing this equation to equation (1) we get that :

⇒ width = 7x or , width =x -2

Therefore , the width of Yun's area model is 7x units or ( x-2 )units .

8 0
3 years ago
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Ainat [17]
If you use photomath itll help you
3 0
3 years ago
Could you please answer this precisely. Thank you!
OleMash [197]

The mathematical functions (equations) are matched to their graph line respectively as follows:

  • y = 960 - 78x: purple straight line.
  • y = 8·3^x: violet line curve that slopes to the left.
  • y = 960·(1/2)^x: green line curve that slopes to the right.

<h3>What is a linear function?</h3>

A linear function can be defined as a type of function whose equation is graphically represented by a straight line on the cartesian coordinate. Mathematically, a linear function is given by this equation:

y = mx ± c.

<h3>What is an exponential function?</h3>

An exponential function can be defined as a type of mathematical function whose values are generated by a constant that is raised to the power of the argument. Mathematically, an exponential function is represented by this formula:

f(x) = keˣ

Next, we would match each of the mathematical functions (equations) to their graph line respectively as follows:

  • y = 960 - 78x: purple straight line.
  • y = 8·3^x: violet line curve that slopes to the left.
  • y = 960·(1/2)^x: green line curve that slopes to the right.

Read more on graphs here: brainly.com/question/24298987

#SPJ1

3 0
2 years ago
X²-7x+14 what is the answer?
Furkat [3]

Answer: X intercepts none Y intercepts (0,14)

Step-by-step explanation:

6 0
2 years ago
The value 5pi/24 is a solution for the equation 4 cos^2 (4x)-3=0. True or false
Margaret [11]

Let's check.

x = 5π/24

4x = 5π/6

cos 4x = cos(5π/6) = cos 150° = -√3/2

cos² 4x = (-√3/2)^2 = 3/4

4 cos² 4x  -3  = 4 (3/4) - 3 = 0

Answer: TRUE

5 0
3 years ago
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