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3 years ago

12

Can You Help me in math do not get it

1 answer:

OverLord2011 [107]3 years ago

6 0

The general form of point-slope is y - y1 = m(x - x1)
IF you are looking for the value of the slope, then look no further than the number attached to the (x - x1) part of the equation. For example the formula
y - 2 = 3(x + 2), notice the number attached to (x + 2), the 3. This is value of the slope.

To tell how the line looks use this general statement
slope is positive - the line from left to right will go up
slope is negative - the line from left to right will go down
y = a number - this is a zero slope, so the line neither goes up or down
x = a number - this is an undefined slope, so the line goes straight up and down

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The area of a rectangle is 42 ft squared, and the length of the rectangle is 5 ft more than twice the width. Find the dimensions

stira [4]

Answer:

<h3>Length = 12 ft</h3>

Width = $\frac{7}{2} ft$

Step-by-step explanation:

Given,

Area of rectangle = $42 \: {ft}^{2}$

Width = X

Length = 2x + 5

Now,

$x(2x + 5) = 42$

$2 {x}^{2} + 5x = 42$

$2 {x}^{2} + 5x - 42 = 0$

$2 {x}^{2} + 12x - 7x - 42 = 0$

$2x(x + 6) - 7(x + 6) = 0$

$(2x - 7)(x + 6) = 0$

Either

$2x - 7 = 0$

$2x = 0 + 7$

$2x = 7$

$x = \frac{7}{2}$

Or,

$x + 6 = 0$

$x = 0 - 6$

$x = - 6$

Negative value can't be taken.

So, width = $\frac{7}{2} ft$

Again,

Finding the value of length,

Length = $2x + 5$

$2 \times \frac{7}{2} + 5$

$7 + 5$

$12$

Length = 12 ft

7 0

3 years ago

Read 2 more answers

If y=12x-2 where changed to y=12x how would the graph of the new function camp are with the oringinal

Gennadij [26K]

It should raise the line of the graph bc you are changing the y-intercept from -2 to 0

7 0

3 years ago

Please help meeee

anygoal [31]

Answer:

For the given function f(x)= -|x| + 2

the domain of the function is: All real numbers

the range of the function is: all numbers greater than or equal to 2

Step-by-step explanation:

We need to find the domain and range of the function f(x)= -|x| + 2.

Domain: Domain is defined as all the possible x values of x for which the function is true.

Range: Range is defined as all the possible y values.

So, For the given function f(x)= -|x| + 2

the domain of the function is: All real numbers (the function is true for all real numbers)

the range of the function is: all numbers greater than or equal to 2

(When solving the equation we will have value of f(x) equal or greater than 2)

6 0

3 years ago

It was possible to move up in social class in ancient Egyptian society.

Eva8 [605]

Answer:

t , c , f , t , a , b , c

Step-by-step explanation:

7 0

3 years ago

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Which polynomial can be simplified to a difference of squares.

viktelen [127]

Answer:

Step-by-step explanation:

The difference of two squares:

a²-b² = (a - b) ( a + b)

a²-b² = a² + ab -ab +b²

6 0

2 years ago