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3 years ago

The graphs below have the same shape. What is the equation of the red graph?

Mathematics

1 answer:

fiasKO [112]3 years ago

5 0

The correct answer is C) F(x)= x^2+4
one way to tell this is correct is the y-intercept is at positive 4

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a daily newspaper has 10225 subscribers when it began publication. six years old later it has 8200 subscribers what is the avera

seraphim [82]

Answer:

The rate of change in number of subscriber for the six years is 3.62%

Step-by-step explanation:

Given as :

The initial subscriber of newspaper = p = 10225

The subscriber of newspaper after 6 years of publish = P = 8200

The time period = t = 6 years

Let The average yearly rate of change = r%

Now, According to question

The subscriber of newspaper after n years = initial subscriber × $(1-\dfrac{\textrm rate}{100})^{\textrm time}$

Or, P = p × $(1-\dfrac{\textrm r}{100})^{\textrm t}$

Or, 8200 = 10225 × $(1-\dfrac{\textrm r}{100})^{\textrm 6}$

Or, $\dfrac{8200}{10225}$ = $(1-\dfrac{\textrm r}{100})^{\textrm 6}$

Or, 0.80195 = $(1-\dfrac{\textrm r}{100})^{\textrm 6}$

Taking power $\dfrac{1}{6}$ both side

So, $(0.80195 )^{\frac{1}{6}}$ = $((1 - \frac{r}{100} )^{6})^{\frac{1}{6}}$

Or, 0.9638 = 1 - $\dfrac{r}{100}$

Or, $\dfrac{r}{100}$ = 1 - 0.9638

Or, $\dfrac{r}{100}$ = 0.0362

Or, r = 0.0362 × 100

i.e r = 3.62

So, The rate of change in subscriber = 3.62%

Hence, The rate of change in number of subscriber for the six years is 3.62% . Answer

4 0

3 years ago

Which of the following is a factor of 2x2 - x - 6

Mars2501 [29]

Answer: for 2x2-x-6 it is -5.75‬ but make sure with other people

Step-by-step explanation:

4 0

3 years ago

What is the value of x in the equation 1.5(x + 4) – 3 = 4.5(x – 2)?

irakobra [83]

1.5x+6-3=4.5(x-2)
1.5x+6-3=4.5x-9
1.5x+3=4.5x-9
1.5x-4.5x+3=-9
1.5x-4.5x=-9-3
-3x=-9-3
-3=-12

X=4

6 0

3 years ago

Read 2 more answers

X(x-4)=12 solve for x

Ivenika [448]

Answer:

x=6 and x=-2

Step-by-step explanation:

x(x-4)=12

first distribute

then move the terms

and the u get

x=6 and x=-2

hope this helped

5 0

3 years ago

Read 2 more answers

Last year, there were 120 scholars in the school band. This year, there are 150. What was the percent charge un membership,?

julia-pushkina [17]

Answer:

25%

Step-by-step explanation:

In order to find percentage you need to insert it into this equation:

$\frac{150 - 120}{120} \\$

Then you get

$\frac{30}{120}$

Which is 0.25 or 25%

3 0

3 years ago