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sergiy2304 [10]
3 years ago
10

The difference of the quotient of 5 and x and the product of 18 and y

Mathematics
1 answer:
zhenek [66]3 years ago
4 0

Answer:

(5/x)-(18y)

Step-by-step explanation:

First write the expression (5/x) and then the second expression (18y) the write the difference, so basically a subtraction. (5/x)-(18y)

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The rule for Function A is y= -2/3x
Rom4ik [11]

Answer:

Both functions have negative rates of change

Function B has a greater rate of change than Function A

Step-by-step explanation:

we know that

<em>Function A</em>

The rule for Function A is

y=-\frac{2}{3}x

This is the equation of a proportional relationship (the line passes through the origin)

The slope is equal to m=-\frac{2}{3}

<em>Function B</em>

Find the equation of the function B

we have the points (-2,0) and (0,-2)

<em>Find the slope</em>

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

substitute the values

m=\frac{-2-0}{0+2}

m=\frac{-2}{2}

m=-1

The equation of the function B in slope intercept form is equal to

y=mx+b

we have

m=-1\\b=-2

substitute

y=-x-2

<u><em>Verify each statement</em></u>

Option 1) Both functions have negative rates of change

The statement is true

Because, the rate of change is the slope of the linear equation

Function A ----> m=-\frac{2}{3}

Function B ----> m=-1

Option 2) Both functions have the same rate of change.

The statement is false (see the explanation)

The rate of change are different ( m=-2/3 and m=-1)

Option 3) When graphed, Function A and Function B are parallel

The statement is false

When graphed, Function A and Function B are intersecting lines, because their slopes are different

Option 4) Function B has a greater rate of change than Function A

The statement is true

Remember that the rate of change can be either positive (increasing function) or negative (decreasing function). To find out which function has a greater rate of change, compare the absolute value of their slopes

therefore

1 > 2/3

6 0
3 years ago
Consider the equation y=-2x+5. Describe everything you know about this graph compared to the parent linear function y=x.​
Mekhanik [1.2K]
Function y = -2x + 5:
slope of -2
y intercept at 5
x intercept at 2 1/2

function y = x
slope of 1
y intercept at 0
x intercept at 0
8 0
2 years ago
The batteries from a certain manufacturer have a mean lifetime of 850 hours, with a standard deviation of 70 hours, assuming tha
matrenka [14]

To answer (a), we will need to find the Z value for 710 hours and 990 hours.

\begin{gathered} For\text{ 710} \\ Z\text{ = }\frac{x-\mu}{\sigma} \\ \text{    = }\frac{710-850}{70} \\ \text{    = -2} \\ p\text{ =0.0228 } \\ For\text{ 990:} \\ Z\text{ = }\frac{990-850}{70} \\ \text{ =2} \\ p\text{ = 0.9772} \end{gathered}\begin{gathered} To\text{ find P \lparen–2 \le Z \le 2\rparen} \\ =\text{ 0.9772 -0.0228} \\ =\text{ 0.9544} \\ =95.44\% \end{gathered}

B) 68% of data lies between one standard deviation of the mean.

850 +70 = 920

850 - 70 = 780

5 0
1 year ago
Hi pls help me plzzzzzzzzzzzz ​
kirill115 [55]

Answer:

(-3,3) - in quadrant 2 because the quadrant numbers increase as you go counterclockwise

Step-by-step explanation:

5 0
2 years ago
Identify the terms. Then identify the coefficients of the variable terms of the expression. (Enter your answers as a comma-separ
tino4ka555 [31]

Answer:

The set of coefficients asociated with the given polynomial in ascending order is [C] = \{4,0,5\sqrt{3}\}.

Step-by-step explanation:

Let y = 5\sqrt{3}\cdot x^{2}+4, which is a polynomic function, defined as:

y = \Sigma_{i=0}^{n}c_{i}\cdot x^{i} (1)

Where:

c_{i} - i-th Coefficient.

x^{i} - i-th Power.

n - Grade of the polynomial.

We notice that given polynomial has degree 2 and can be rewritten by applying this definition:

y = 4 + 0\cdot x + 5\sqrt{3}\cdot x^{2}

Then, the set of coefficients asociated with the given polynomial in ascending order is:

[C] = \{4,0,5\sqrt{3}\}

7 0
3 years ago
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