All categories

2 years ago

Find the domain and Range f(x)= 2/7x-2

Mathematics

1 answer:

wolverine [178]2 years ago

5 0

Answer:

Domain: {x|x∈R}

Range: ,{y|y∈R}

Step-by-step explanation:

You might be interested in

If waffles are $3 a piece, how much would it cost for 26 waffles?<br><br>

riadik2000 [5.3K]

It will cost atleast 78 dollars

8 0

2 years ago

Read 2 more answers

What is the definition of y=mx+b

Brut [27]

Answer:

In the equation of a straight line (when the equation is written as "y = mx + b"), the slope is the number "m" that is multiplied on the x, and "b" is the y-intercept (that is, the point where the line crosses the vertical y-axis).

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

There are 207 students in the 9 classes at East Amwell Elementary School. At this rate, how many students are in 6 classes?

hoa [83]

Divide 9 into 207 then times that number by 6. You should get 138 :)x

3 0

2 years ago

Read 2 more answers

Solve square root of x + square root of x+2 = 2

andrew-mc [135]

The value of x is $\frac{1}{4}$

Step-by-step explanation:

Given:

$\sqrt{x} + \sqrt{x + 2} = 2$

Rearranging the radical on left side,

$\sqrt{x + 2} = 2 - \sqrt{x}$

Power on both sides,

$(\sqrt{x + 2})^{2} = (2 - \sqrt{x})^{2}$

Simplifying the left,

$x + 2 = (2 - \sqrt{x} )^{2}$

For the RHS equation, use the property of (a-b)² = (a²-2ab+b²),

$= > x + 2 = {2}^{2} - (2 \times 2 \sqrt{x}) + ( \sqrt{x})^{2}$

Now calculating its powers,

$= > x + 2 = 4 - 4\sqrt{x} + x$

Now sending -4√x to the LHS (left side), its sign becomes plus (+),

$= > 4 \sqrt{x} = 4 + x - x - 2$

Now the +x and -x will be cancelled,

$= > 4 \sqrt{x} = 4 - 2$

$= > 4 \sqrt{x} = 2$

Bringing 4 to the right side, it becomes the denominator,

$= > \sqrt{x} = \frac{2}{4}$

$= > \sqrt{x} = \frac{1}{4}$

Now powering both sides,

$= > ( \sqrt{x})^{2} = ( \frac{1}{2})^{2}$

$= > x = \frac{1}{4}$

4 0

2 years ago

5/4 × 9/10 <br>fraction in simplest form

MaRussiya [10]

Answer:

$\frac{9}{8}$

Step-by-step explanation:

$\frac{5}{4} \times \frac{9}{10} \\\\=\frac{5\times 9}{4\times 10}\\\\=\frac{1\times 9}{4\times 2}\\\\=\frac{9}{8}\\\\$

3 0

3 years ago

Read 2 more answers