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3 years ago

Please answer CORRECTLY !!!!!!!! Will mark BRAINLIEST !!!!!!!!!

Mathematics

2 answers:

atroni [7]3 years ago

7 0

-24 is the answer

Answer is:

-24 this is the answer correct but i can’t do the explanation.

lisov135 [29]3 years ago

3 0

Answer:

-24

Step-by-step explanation:

First find f(3), which is the value of the blue line when x =3

f(3) = -2

Then find g(-1) which is the value of the red line when x= -1

g(-1) = 6

-6 f(3) - 6*g(-1)

-6*-2 - 6(6)

12 - 36

-24

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Which graph represents a line with a slope of - į and a y-intercept equal to that of the line y = = x-27

telo118 [61]

Answer:

Step-by-step explanation:

Let the equation of the line is,

y = mx + b

Where m = slope of the line

b = y-intercept

Slope of the line 'm' = - $\frac{2}{3}$

y-intercept 'b' of the line is equal to the y-intercept of another line given as,

$y=\frac{2}{3}x-2$

Here y-intercept of the line 'b' = -2

Therefore, the equation of the line will be,

y = (- $\frac{2}{3}$ )x + (-2)

$y=-\frac{2}{3}x-2$

Here negative slope represents a line which is decreasing having y-intercept = -2

Therefore, last graph (bottom) given in the picture will be the answer.

6 0

3 years ago

Which of the following is the product of the rational expressions shown below? 7x/x-4•x/x+7

LiRa [457]

<h2>The product of the rational expressions $\dfrac{7x}{x-4}.\dfrac{x}{x+7}$ = $\dfrac{7x^2}{x^2+3x-28}$ </h2>

Step-by-step explanation:

We have,

$\dfrac{7x}{x-4}.\dfrac{x}{x+7}$

To find, the product of the rational expressions $\dfrac{7x}{x-4}.\dfrac{x}{x+7}$ = ?

∴ $\dfrac{7x}{x-4}.\dfrac{x}{x+7}$

= $\dfrac{7x.x}{(x-4)(x+7)}$

= $\dfrac{7x^2}{(x(x+7)-4(x+7)}$

= $\dfrac{7x^2}{x^2+7x-4x-28}$

= $\dfrac{7x^2}{x^2+3x-28}$

Thus, the product of the rational expressions $\dfrac{7x}{x-4}.\dfrac{x}{x+7}$ = $\dfrac{7x^2}{x^2+3x-28}$

5 0

3 years ago

salma purchased a prepaid phone card for $20. long distance calls cost 24 cents a minute using this card. salma used her card on

suter [353]

We can set up an equation to solve this problem, but first we need to write out what we know.

$20 overall
$0.24 every minute
$13.52 remaining on the card

Now that we know our information, we can set it up in an equation.

20 - 0.24x = 13.52

The 20 represents $20 overall when she first got the phone card.
We are then subtracting $20 from how must it costs a minute (which is 24 cents). The 'x' indicates the number we are trying to find (how many minutes her call lasted). Lastly, 13.52 is the result of everything, since she has $13.52 remaining on the card.

We can now solve the equation:

20 - 0.24x = 13.52
-0.24x = 13.52 - 20 /// subtract 20 from each side
-0.24x = -6.48 /// simplify
x = 27 /// divide each side by -0.24

Our solution is: x = 27.

-----

An easier way to solve this problem would be to first, subtract the total amount of money she had on the card when she first got it, and then the remaining total she ended up with.

$20 - $13.52 = $6.48

So, she spent a total of $6.48 on long distance calls, but since we are looking for how many minutes, we need to divide the total she spent and how much it costs per minute.

6.48 ÷ 24 = 27

We receive the same amount of minutes spent just like we did the last way we solved.

-----

Salma spent 27 minutes on the phone.

3 0

3 years ago

A certain shop repairs both audio and video components. Let A denote the event that the next component brought in for repair is

tigry1 [53]

Answer:

The question continues ; Suppose that P(A) = 0.625 and P(B) = 0.05, what is P(B|A)

Step-by-step explanation:

The steps are as shown in the attachment