3 years ago

1. What is the constant of proportionality?

Mathematics

2 answers:

KonstantinChe [14]3 years ago

8 0

You have to work it out and do some picture it gel me and I got an A

vekshin13 years ago

5 0

Answer:

1.) times 5

2.) sorry, i cannot read it...

Step-by-step explanation:

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Help help needed for composition of function

dimulka [17.4K]

Answer:

$\circledast \ \ f\circ f\left( x\right) = x$

$\circledast \ \ g\circ g\left( x\right) =4x - 21$

Step-by-step explanation:

$f(x)=\frac{5}{2x}$

g(x) = 2x - 7

==============

$f\circ f\left( x\right) =\frac{5}{2\left( f\left( x\right) \right) }$

$=\frac{5}{2\left( \frac{5}{2x} \right) }$

$=\frac{5}{\left( \frac{5}{x} \right) }$

$=5\times\frac{x}{5}$

$=x$

_____________

$g\circ g\left( x\right) =2(g(x)) - 7$

= 2(2x - 7) - 7

= 4x - 14 - 7

= 4x - 23

3 0

2 years ago

90 Points plz help!!!

stich3 [128]

Y=7x-1 is that what youre looking for?

5 0

3 years ago

Read 2 more answers

Could you help me figure out the left/right facesortop/bottom faces

jolli1 [7]

Explanation

The question requires that we figure out the sides that represent the top/bottom faces and the left/right faces.

We are given the plan of the aluminum sheet

The top, bottom, left and right faces are shown below

The dimension for the top and bottom is

$1.5ft\times5ft=7.5ft^2$

Since they are two

Therefore the total area for the top and bottom will be

$2\times7.5ft^2=15ft^2$

For the left and right faces, the dimensions are

The dimensions of the left and right faces will be

$\text{1}.25ft\times5ft=6.25ft^2$

Since they are two, then

The area will be

$6.25ft^2\times2=12.5ft^2$

7 0

1 year ago

Which of the following is not a congruence transformation? A) a reflection over the axis b) a dilation with scale factor 0.5 c)

Wewaii [24]

It would be c because this isn't transforming it

6 0

4 years ago

A small bird uses 5^-4 Joules of energy to sing a song. Write the amount of energy as a decimal.

const2013 [10]

The answer is c.
We just have to apply the law of exponents:
$=\frac{1}{5^4}$
That´s equal to:
$=\frac{1}{625}=0,0016$

7 0

4 years ago