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3 years ago

ABCD ~ QRST

Mathematics

1 answer:

densk [106]3 years ago

3 0

Answer:

n = 6

Step-by-step explanation:

The left side is 8/12 = 2/3 the length of the bottom, so ...

n = (2/3)(9)

n = 6

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The following points are on the graph of a function:

Maurinko [17]

An inverse function reverses the roles of inputs and outputs (of x-values and y-values).

If (2,4) is on the graph of a function, then (4,2) is on the graph of the inverse function.

If (9,7) is on the graph of the inverse, then (7,9) would be on the graph of the original function.

If (a,b) is on the graph of the function, then (b,a) is on the graph of the inverse.

Getting to your question, which of the points listed has the inverse listed up in the table?

5 0

3 years ago

Given a≠±b and a^2−b^2/a+b =12, find a−b.

11Alexandr11 [23.1K]

$\dfrac{a^2 - b^2}{a+b} = 12$

--------------------------------------------------
Factorise a² - b² :
--------------------------------------------------
$\dfrac{(a+b)(a-b)}{a+b} = 12$

--------------------------------------------------
Crossed out common factors, (x + a) :
--------------------------------------------------
$a- b = 12$

4 0

4 years ago

Read 2 more answers

At the beginning of the day, it was -14 degrees. Throughout the day, the temperature increased 16 degrees. What was the temperat

konstantin123 [22]

Answer:

The temperature at the end of the day is 2 degrees

Step-by-step explanation:

Here, we are interested in calculating the temperature at the end of the day.

In the question, we are told that at the beginning of the day, temperature was -14 degrees.

But throughout the day, the temperature increased by 16 degrees;

Thus, the temperature at the end of the day = -14 degrees + 16 degrees = 2 degrees

7 0

3 years ago

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storchak [24]

Answer:

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Write the slope-intercept form of the equation with the given characteristics.

Serhud [2]

Answer:

1. y=1/4x+2

2. y=-3/2x +1

3. y = -3/2x -2

4. y= -3x -49

5. y = -2x +8

Step-by-step explanation:

1. Use slope intercept, y=mx+b where m =1/4 and b=2. y=1/4x+2

2. Use the point-slope form to write the equation, then simplify and convert into the slope intercept form.

(y-7)=-3/2(x--4)

y-7=-3/2(x+4)

y-7=-3/2x-6

y = -3/2x -6 +7

y=-3/2x +1

3. To write the equation of a line we must have a slope and a point. To find the slope we use the slope formula and substitute (x,y) points in it as shown below:

$m=\frac{y_2-y_1}{x_2-x_1}=\frac{-5-1}{2--2}=\frac{-5+-1}{2+2}=\frac{-6}{4}=\frac{-3}{2}$

Now that we have the slope, plug in the slope and choose one point to plug into the point slope formula. Use the point-slope form to write the equation, then simplify and convert into the slope intercept form.

(y--5)=-3/2(x-2)

y+5=-3/2(x-2)

y+5=-3/2x + 3

y = -3/2x -2

4. Use the point-slope form to write the equation, then simplify and convert into the slope intercept form. The slope is -3 since parallel lines have the same slope.

(y--4)=-3(x-5)

y+4=-3 (x+15)

y+4=-3x -45

y= -3x -49

5. Use the point-slope form to write the equation, then simplify and convert into the slope intercept form. The slope is -2 since perpendicular lines have the negative reciprocal slopes. So 1/2 becomes -2.

(y--6)=-2(x-7)

y+6=-2 (x-7)

y+6 = -2x + 14

y = -2x +8

7 0

4 years ago