2 years ago

A washing machine marked for $320 was sold at $280. What was the percentage of discount for the washing machine?

2 answers:

5 0

Answer:

the person who bought it saved 40 dollars and the percentage saved was 12.50 i just used a discount calculator on google

Step-by-step explanation:

ohaa [14]2 years ago

5 0

Answer:

12.5%

Step-by-step explanation:

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F(x)=3/x+2-√x-3 f(19)=

77julia77 [94]

Answer:

- 27/7

Step-by-step explanation:

Given

f(x)=3/(x+2) - √(x-3)

To find

f(19)

Solution

f(19) = 3/(19 + 2) - √(19 - 3) = 3/21 - √16 = 1/7 - 4 = - 27/7

3 0

2 years ago

For the graphed function f(x) = -(5)* - 3 + 2, calculate the average rate of change from x = 3 to x = 4.

Ilia_Sergeevich [38]

Answer:

-4

Step-by-step explanation:

The average rate of change from x=a to x=b of f(x) is $\frac{f(b)-f(a)}{b-a}$

The given function is $f(x)=-5^{x-3}+2$ .

$f(4)=-5^{4-3}+2=-3$ .

$f(4)=-5^{3-3}+2=1$ .

The average rate of change from x=3 to x=4 is given by:

$\frac{f(4)-f(3)}{4-3}$

$\frac{-3-1}{4-3}=-4$

7 0

2 years ago

Given the equation y = |x| - 2 and the x values of -2, -1, 0, 1, 2, substitute x and choose the correct set of y values below.

Marat540 [252]

Answer:

y = {0, -1, -2}

3 0

3 years ago

Please answer #1 for me only ! What is my Y for #1 , don't forget to graph !

mart [117]

The table and the graph is shown in the following picture

7 0

2 years ago

What are the vertical asymptotes of the function f(x) =5x+5/x2 + x-2

katen-ka-za [31]

let's recall that the vertical asymptotes for a rational expression occur when the denominator is at 0, so let's zero out this one and check.

$\bf \cfrac{5x+5}{x^2+x-2}\qquad \stackrel{\textit{zeroing out the denominator}~\hfill }{x^2+x-2=0\implies (x+2)(x-1)=0}\implies \stackrel{\textit{vertical asymptotes}}{ \begin{cases} x=-2\\ x=1 \end{cases}}$

5 0

2 years ago