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3 years ago

For the graph below, what is the cost per bottle?

Mathematics

2 answers:

motikmotik3 years ago

7 0

17.5$ for every 5 bottles refilled. $3.50 for every 1 bottle refilled

gizmo_the_mogwai [7]3 years ago

5 0

Answer:

1 bottle = $3.50

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What is the surface area of the square pyramid?

exis [7]

Hope this helps .. sorry if it’s wrong .

4 0

4 years ago

Gerry thinks that the points (4,2) and (−1,4) form a line perpendicular to a line with slope 4. Do you agree? Why

faust18 [17]

Answer:

The answer to your question is these lines are not perpendicular.

Step-by-step explanation:

Data

A (4, 2)

B (-1, 4)

slope = m = 4

Perpendicular lines mean that these lines cross and form an angle of 90°. Also, the slope of perpendicular lines is negative reciprocals.

Process

1.- Find the slope of the second line and compare it to the slope given.

slope = $\frac{y2 - y1}{x2 - x1}$

Substitution

slope = $\frac{4 - 2}{-1 - 4}$

Simplification and result

slope = $\frac{-2}{5}$

-2/5 is not a negative reciprocal of 4, so these lines are not perpendicular.

4 0

4 years ago

Please help its for a grade.

Kamila [148]

Answer:

See below

Step-by-step explanation:

Taking the readings from the graph

x .... y
0 .... 2
2 .... 6
4 .... 10
6 .... 14

Rate of change for the given line is:

(6 - 2)/2 = 4/2 = 2
y- intercept is 2

Equation for the line is:

y = 2x + 2

For the point (40, 76) we can verify with the equation:

40*2 + 2 = 82

The point (40, 76) is close the line but the line doesn't pass through it.

6 0

3 years ago

Read 2 more answers

Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x.

Molodets [167]

$f(x)= \frac{x-9}{x+5}$
$g(x)= \frac{-5x-9}{x-1}$
$f(g(x))= \frac{ \frac{-5x-9}{x-1} -9}{ \frac{-5x-9}{x-1}+5 }$
$f(g(x))= \frac{-5x-9-9(x-1)}{-5x-9+5(x-1)}$
$f(g(x))= \frac{-5x-9-9x+9}{-5x-9+5x-5}$
$f(g(x))= \frac{-14x}{-14}=x$
$g(f(x))= \frac{-5 \frac{x-9}{x+5}-9 }{ \frac{x-9}{x+5}-1 }$
$g(f(x))= \frac{-5x+45-9(x+5)}{x-9-1(x+5)}$
$g(f(x))= \frac{-5x+45-9x-45}{x-9-x-5}$
$g(f(x))= \frac{-14x}{-14}=x$

6 0

3 years ago

Drag the numbers to order them from least to greatest. 0.9, −2.4, −0.8, 1.6, 0.2

Elina [12.6K]

The answer is -2.4, -0.8,0.2,0.9,1.6

6 0

3 years ago