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Norma-Jean [14]
3 years ago
9

PLZ HELPPPPPP. the choices are below for the attachment. It is a function because there is a price given for every package. It i

s a function because weekend packages are always $50 more than weekday packages. It is not a function because each package number has two different prices. It is not a function because there are two different packages available for $180.

Mathematics
2 answers:
blsea [12.9K]3 years ago
8 0

Answer:

it is not a function because there are two different packages available for $180.

Step-by-step explanation:

Angelina_Jolie [31]3 years ago
6 0
That’s not a function because function all have different values, if two things have the same value, it cannot be a function. Two DIFFERENT packages are available for $180, that means it not a function.
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PLEASE HELP
wlad13 [49]

Answer:

The mistake is in step 1 when you do -2(x+4) you do the distributive property first -2 times x is -2x that's correct but -2 times 4 is not 8 it is -8

when you multiply by negatives the answer will always be a negative unless your multiply 2 negative number together then itll be positive ex. 4 × -4 = -16 (negative) but -4 × -4 = 16 (positive)

4 0
3 years ago
Could you please show the steps
rodikova [14]

Answer:

21

Step-by-step explanation:

You add up the two people until u get the number 259

5 0
3 years ago
Read 2 more answers
The surface of a hill is modeled by z = 100 − 4 x 2 − 2 y 2 . When a group of hikers reach the point (-3,-2,56) it begins to sno
m_a_m_a [10]

Answer:

(-24, -8)

Step-by-step explanation:

Let us recall that when we have a function f

\large f:\mathbb{R}^2\rightarrow \mathbb{R}\\f(x,y)=z

<em>if the gradient of f at a given point (x,y) exists, then the gradient of f at this point (x,y) gives the direction of maximum rate of increasing and minus the gradient of f at this point gives the direction of maximum rate of decreasing</em>. That is

\large \nabla f=(\frac{\partial f}{\partial x},\frac{\partial f}{\partial y})

at the point (x,y) gives the direction of maximum rate of increasing

\large -\nabla f

at the point (x,y) gives the direction of maximum rate of decreasing

In this case we have

\large f(x,y)=100-4x^2-2y^2

and we want to find the direction of fastest speed of decreasing at the point (-3,-2)

\large \nabla f(x,y)=(-8x,-4y) \Rightarrow -\nabla f=(8x,4y)

at the point (-3,-2) minus the gradient equals

\large -\nabla f(-3,-2)=(-24,-8)

hence the vector (-24,-8) points in the direction with the greatest rate of decreasing, and they should start their descent in that direction.

7 0
4 years ago
Determine algebraically whether the function is even, odd, or neither even nor odd.
ololo11 [35]

Answer:

odd

Step-by-step explanation:

Just so you know there are shortcuts for determining if a polynomial function is even or odd. You just to make sure you use that x=x^1 and if you have a constant, write it as constant*x^0 (since x^0=1)

THEN!

If all of your exponents are odd then the function is odd

If all of your exponents are even then the function is even

Now you have -4x^3+4x^1

3 and 1 are odd it is an odd function

This a short cut not the legit algebra way

let me show you that now:

For it to be even you have f(-x)=f(x)

For it be odd you have f(-x)=-f(x)

If you don't have either of those cases you say it is neither

So let's check

plug in -x  -4(-x)^3+4(-x)=-4*-x^3+-4x=-4x^3+-4x

that's not the same so not even

with if we factor out -1 .... well if we do that we get -(4x^3+4x)=-f(x)

so it is odd.

6 0
4 years ago
Are these triangles congruent ?<br><br> And what is the theorem ?
ahrayia [7]

Answer:

Yes, they are congruent. Theorem: SSS

Step-by-step explanation:

The triangles are congruent because it is given that they have 2 sides that are the same (hence the matching tick marks). In the diagram, you can also see that they share a side. Since all three sides on both triangles are the same, the two triangles are congruent by the SSS theorem.

5 0
3 years ago
Read 2 more answers
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