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2 years ago

What is the equation of the trend line ? K= J+

Mathematics

1 answer:

den301095 [7]2 years ago

5 0

The equation is K= -2j+24

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HELP PLS

jeka94

There is no correlation. We know this because it doesn’t matter how many samples were provided, the customers still bought approximately the same number of bottles.

4 0

2 years ago

Mr. Martin's math test, which is worth 100 points, has 35

AlekseyPX

Number of questions worth 5 points = 10

Number of questions worth 2 points = 25

Further explanation:

The given system is a system of linear equations in two variables.

We will use the subsitution method to solve the system

Given equations are:

$x+y=35\\5x+2y=100$

From equation no 1:

$x+y=35\\x=35-y$

Putting x=35-y in second equation

$5x+2y=100\\5(35-y)+2y=100\\175-5y+2y=100\\-3y=100-175\\-3y=-75\\\frac{-3y}{-3}=\frac{-75}{-3}\\y=25\\Putting y=25 in first equation\\x+25=35\\x= 35-25\\x=10$

Hence,

Number of questions worth 5 points = 10

Number of questions worth 2 points = 25

Keywords: Linear Equations, Substitution method

Learn more about substitution method at:

#LearnwithBrainly

3 0

3 years ago

Read 2 more answers

F(x) = 2x-9<br> (a) Find f<br><br> Would realllyy appreciate if you guys help me with this one :)

egoroff_w [7]

Answer:

x=9/2 or 4.5

Step-by-step explanation:

8 0

3 years ago

HELP ASAP PLEASE!!!!

masha68 [24]

The one ur selecting is the correct one!

5 0

3 years ago

State the domain and range of both the function and the inverse function. f(x) = 8 x + 8 f -1(x) = Domain of f(x): Range of f(x)

Katena32 [7]

Answer:

$f^{-1}(x) = \frac{x+8}{8}$

Domain of f(x): All real values.

Range of f(x): All real values.

Domain of f -1(x): All real values.

Range of f -1(x): All real values

Step-by-step explanation:

We are given the following function:

$f(x) = 8x + 8$

Since it is a line, we have that both the domain is the range is the real set.

Inverse function:

The domain of the inverse function is the range of the original function, and the range of the inverse function is the domain of the original function.

Finding the inverse function:

Exchange x and y in the original function, and isolate y. So

Original

$y = 8x + 8$