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3 years ago

Finding domain f(x)=3x+1/x-5

1 answer:

4 0

The function is undefinded if the denominator, x-5, equals 0.
So $x-5 \neq 0 \\ 
x \neq 5$ .
The domain is $x \neq 5$ .
In interval notation, this is (-infinity, 5) u (5, infinity).

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Determine the distance between the line y = −4x − 7 and the point (1, 1). (Express the

Marta_Voda [28]

$distance = | \frac{(- 4 \times 1) + (- 1 \times 1)-7}{ \sqrt{ {( - 4)}^{2} + {( - 1)}^{2} } } | \\= \frac{ - 12}{ \sqrt{17 } } \\ = \frac{ - 12 \sqrt{17} }{17} \\ = - 2.91$

5 0

3 years ago

Khairul is x years old .Khairul`s uncle is 4 times as old as khairul will be in 5 years .Find the present age of Kharuls`s uncle

rodikova [14]

Answer:

4x + 15

Step-by-step explanation:

Let the age of Khairul's uncle y.

From the question given above, the following were obtained:

Khairul's age = x years

In 5 years time:

Khairul's age = x + 5

Khairul's uncle age = y + 5

But from the question given above,

Khairul`s uncle will be 4 times as old as what khairul will be in 5 years. This can be written as follow:

y + 5 = 4(x + 5)

Clear bracket

y + 5 = 4x + 20

Subtract 5 from both side

y + 5 – 5 = 4x + 20 – 5

y = 4x + 15

Therefore, Khairul's uncle present age is 4x + 15

8 0

3 years ago

Read 2 more answers

How would you graph the solution set of x - 6 < -3?

mezya [45]

Answer:

Draw an open circle on 3 and shade to the left.

Step-by-step explanation:

Given:

The inequality given is:

$x-6$

In order to solve for 'x', we add 6 on both sides of the inequality. This gives,

$x-6+6$

Therefore, the solution is 'x' less than 3.

So, 'x' includes all the values that are less than 3 and excluding 3 as the inequality sign is less than.

So, on a number line, the values that are less than 3 are to the left of 3. So, we shade to the left. Also, 3 is excluded from the solution. So, we use an open circle as shown below.

So, the first option is the correct option.

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3 years ago

Which term of the A.P 2,8,14,20,.... will be 210 more than its 60th term?

Sergeeva-Olga [200]

456.......................

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4 years ago

I'd seriously appreciate it if anyone could help ASAP! I'll give Brainliest!

AURORKA [14]

Answer:

Did you ever find the answer?

Step-by-step explanation:

8 0

4 years ago