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3 years ago

PLZ HELP PLZ HELP PLZ HELP WILL GIVE BRAINLY

Mathematics

2 answers:

Valentin [98]3 years ago

7 0

Answer:

Steps 4 and 5

Step-by-step explanation:

Paula divided both sides in 4 and 5 to keep the equations equal.

Hope that this helps!

Elena-2011 [213]3 years ago

3 0

I think

B is answer r

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Can someone help me with this please

DIA [1.3K]

Answer:

See below

Step-by-step explanation:

The starting point of 0 has a value of 3. The common difference of 2 is added at each step increse in n.

n f(n)

0 3

1 5

2 7

3 9

4 11

The can be modeled by the equation y = 2x+3

5 0

3 years ago

Pt 2 6-7 Pleaseee Helpp

xeze [42]

Answer:

w = 15

Step-by-step explanation:

x ___w___ = 3 x 5

w = 15

4 0

3 years ago

Read 2 more answers

Given the explicit formula an=3(-4)n-1, what is the sixth term?

Sholpan [36]

Answer:

a6 = -3072

Step-by-step explanation:

Put 6 where n is and do the arithmetic.

Since the form of your function looks like it is trying to describe a geometric sequence, we assume you actually mean ...

an = 3(-4)^(n-1)

So, for n=6, this has the value ...

a6 = 3(-4)^(6-1) = 3(-1024)

a6 = -3072

_____

Same deal if you really mean

an = -12n -1

a6 = -12(6) -1 = -73

5 0

3 years ago

Ivanna is a software saleswoman. Let y represent her total pay (in dollars). Let x represent the number of copies of History is

artcher [175]

1. For every extra copy, Ivanna sells she gets an additional 120 dollars (+$120) and for every less copy she loses $120 dollars (-$120).

2. Ivanna's total pay is $2,400 if she doesn't sell any copies of History is Fun.

Step-by-step explanation:

Step 1:

y = 2,400 + 120x, where y is Ivanna's total pay and x is the number of copies of history is fun she sells.

To calculate the change is Ivanna's pay we find the difference in pay for two consecutive values of y.

We must calculate y when x is of consecutive values i.e. 1, 2, 3, 4 ...

Step 2:

We calculate the value of y when x = 1, 2 and 3.

When x = 1, y = 2,400 + 120 (1) = 2,400 + 120 = $2,520.

When x = 2, y = 2,400 + 120 (2) = 2,400 + 240 = $2,640.

When x = 3, y = 2,400 + 120 (3) = 2,400 + 360 = $2,760.

Step 3:

To calculate the increase in her pay for a copy, we subtract y when x = 2 from y when x = 3.

(y when x = 3) - (y when x = 2) = $2,760 - $2,640 = $120.

So for every extra copy, Ivanna gets an extra $120.

To calculate the decrease in her pay for a copy, we subtract y when x = 3 from y when x = 2.

(y when x = 2) - (y when x = 3) = $2,640 - $2,760 = -$120.

So for every less copy, Ivanna loses $120.

Step 4:

To calculate her pay when she doesn't sell any copies of history is fun, we substitute the value of x as 0 in y.

When x = 0, y = 2,400 + 120 (0) = $2,400.

So Ivanna earns $2,400 if she doesn't sell any copies of history is fun.

8 0

3 years ago

The number of Apple iPods sold in 2009 was 54.13 million. That number decreased approximately linearly to 26.38 million iPods so

AleksandrR [38]

Answer:

$A(t) = -6.9375t + 81.88$ is the amount, in millions, for the number of Apple iPods sold in t years after 2005.

Step-by-step explanation:

Linear function:

A linear function has the following function:

$y = mx + b$

In which m is the slope(the value that y changes by when x changes by 1) and b is the y-intercept(the initial value of the output).

Finding the value in 2005:

This is b.

The number of Apple iPods sold in 2009 was 54.13 million. That number decreased approximately linearly to 26.38 million iPods sold in 2013.

So in 4 years, it decreased from 54.13 - 26.38 = 27.75 million.

So the value in 2005 should also be 27.75 million more than in 2009, that is 54.13 + 27.75 = 81.88. So

$y = mx + 81.88$

Using A for y and t for x

$A(t) = mt + 81.88$

Finding the slope:

When we have two points, the slope is given by the change in the output divided by the change in the input.

In 4 years, the amount decrease by 27.75 million. So

$m = -\frac{27.75}{4} = -6.9375$

$A(t) = -6.9375t + 81.88$ is the amount, in millions, for the number of Apple iPods sold in t years after 2005.

6 0

3 years ago