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zlopas [31]
2 years ago
14

5

Mathematics
2 answers:
jeka942 years ago
7 0

Answer:

Option B is correct

Step-by-step explanation:

Both expressions are the same, but the x and the 7 in the parentheses are flipped. Since they are in closed parentheses, this does not affect the outcome of the expression at all.

gtnhenbr [62]2 years ago
3 0

Answer: if you answers my question ill answer this

Step-by-step explanation:

pleade

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Which statements about these two functions are true? Select the TWO that apply. Function A is a linear function and Function B i
KengaRu [80]

Answer:

Function A is a linear function and Function B is a nonlinear function

Function A has a positive rate of change

Step-by-step explanation:

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

Option 1) Function A is a linear function and Function B is a nonlinear function

The statement is True

Because

Function A

The function A represent a proportional relationship that can be expressed in the form

Find the value of k

For x=1, y=5 ----> k=\frac{5}{1}=5

For x=2, y=10 ----> k=\frac{10}{2}=5

For x=3, y=15 ----> k=\frac{15}{3}=5

so

y=5x

The graph is a straight line

therefore

Function A represent a linear function

Function B

we have

y=4x^2+2

This is a quadratic equation (vertical parabola open upwards)

The graph is a curved line

therefore

Function B represent a nonlinear function, because the graph is not a straight line

Option 2) Function B has two y-intercepts at (0, 2) and (0, –2)

The statement is False

Because

The y-intercept is the value of y when the value of x is equal to zero

so

For x=0

y=4(0)^2+2=2

Therefore

The function B has only one y-intercept at (0,2)

Option 3) Function A has a positive rate of change.

The statement is True

Because

The rate of change of the function A is equal to the slope

The slope of the function A is m=5

Is a increasing function

As x increases the value of y increases

As x decreases the value of y decreases

Option 4) Function B has a negative rate of change

The statement is False

Because

To find the average rate of change, we divide the change in the output value by the change in the input value

we have

y=4x^2+2

Is a vertical parabola open upward

The vertex of the function B is the point (0,2)

For the domain ----> (-∞,0)

The function is decreasing ( the rate of change is negative)

For the domain ----> (0,∞)

The function is increasing ( the rate of change is positive)

4 0
3 years ago
PLS HELP ME ASAP FOR 20!! (MUST SHOW WORK!!) + LOTS OF POINTS *maybe SHOW a pic*
almond37 [142]
1/2 because when you divide by 1/2 you get 1/6 , if you do the problem backwards you get 1/6

6 0
3 years ago
Read 2 more answers
NEED HELP!!! 20 POINTS WILL MARK BRAINLIEST
Margarita [4]
We use the formula  Area = 1/2 bc sin A  = 1/2 * 2 *  √2 * sin 60

A =   √2 * √3  / 2

     =  √6/ 2  (answer)
5 0
3 years ago
Elimination using multiplication What is the best answer? 2x+y=0
JulijaS [17]

Answer:

x=-2, y=4. (-2, 4).

Step-by-step explanation:

2x+y=0

5x+3y=2

----------------

-3(2x+y)=-3(0)

5x+3y=2

-------------------

-6x-3y=0

5x+3y=2

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-x=2

x=-2

2(-2)+y=0

-4+y=0

y=0-(-4)

y=0+4

y=4

3 0
3 years ago
Read 2 more answers
What is one thousand two hundred eighty-six in Standard and Expanded form?
Zepler [3.9K]

One thousand = 1000

two hundred = 200

eighty = 80

six = 6


For word form, change the standard form into words:

Word form: One thousand, two hundred, and eighty-six


For standard form, change the words into numbers

Standard form: 1,286


For expanded form, expand the number so that each value number is separated

Expanded form: 1000 + 200 + 80 + 6


hope this helps

3 0
3 years ago
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