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lana66690 [7]
3 years ago
11

The graph of a proportional relationship contains the point (20, 4) .

Mathematics
2 answers:
pshichka [43]3 years ago
7 0

Answer:

i think its 5/1

Step-by-step explanation:

Novosadov [1.4K]3 years ago
5 0

Step-by-step explanation:

in a proportional relationship, one variable is always a constant value times the other.

and as such, (0, 0) is always a point of that relationship too.

in general that means the equation is

y = ax

with a being the constant.

using the given point :

4 = a×20

a = 4/20 = 1/5

so, the equation is y = x/5

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Determine which line is perpendicular to y = - 7/5x-2.​
tatuchka [14]

Answer:

y = 5/7 x  - 6

Step-by-step explanation:

For two lines to be perpendicular, the product of their slope must be -1

The slope of the given function is -7/5

Let the slope of the required function be m

m * -7/5 = -1

7/5 m = 1

7 = 5m

m = 5/7

The slope of the line perpendicular to the line is 5/7

The required equation (using any value of the y-intercept) is expressed as;

y = 5/7 x  - 6

Note that the y-intercept value was assumed and any value can be used

6 0
3 years ago
Help me please<br><img src="https://tex.z-dn.net/?f=f%28x%29%20%3D%20%20ln%28x%20%7B%20%7D%20%5E%7B2%7D%20%2B%202%20%29%20" id="
CaHeK987 [17]
➡Answer: x=√(e^y-2)

❇Explanation:
Step1: Let f(x)=y,then

↪y=ln(x²+2)

Step2: Converting it into exponential form,

↪e^y=x²+2

↪x²=e^y-2

Step3: Taking square root of both sides,

↪x=√(e^y-2)

❇Note:

ln means log with base e.

So in step 2 , base e of ln (x²+2) goes to other side in the form e^y. That is simply the property of log I used there..

Hope this helps!
3 0
3 years ago
The cost of a piece of carpet is dependent on its area, in square feet, as shown in the graph.
Bess [88]

Answer:

A. false

B. c = 2.258241758a - 1.923076923

C. $290

Step-by-step explanation:

Part B was solved using a graphing calculator

3 0
4 years ago
The Tabletop Games club, a student-led campus group, hosted a virtual concert last week to raise awareness about their club and
yarga [219]

Answer:

um i don't know this (i do im just lazy as heck)

Step-by-step explanation:

3 0
2 years ago
Please help
Vlada [557]

We know that

When we have

f(x)=ax^2 +bx+c

Here ,

a is the leading coefficient

c is the constant term

so, we can compare it with

f(x)=5x^2-7x+6

so, we get

a=5,c=6

so,

leading coefficient is 5

constant term is 6......................Answer

4 0
4 years ago
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