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3 years ago

11

Could anyone please help me with this? I will vote brainliest

1 answer:

Wewaii [24]3 years ago

3 0

You can rewrite every radical as an exponent by using the following property — the top number in the resulting rational exponent tells you the power, and the bottom number tells you the root you’re taking. For example, you can rewrite 3 √(8^2<span>) as 8 (2/3).</span>

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X<br> f(x) =<br> x2 + 4x<br> .<br> x2_4

PtichkaEL [24]

The answer is 1/(x+4)
Explanation:
You would factor out the denominator
So,
(X-4)(x+4)=x^2-16
So, x-4/(x+4)(x-4)
Then x-4 cancels each other out from the numerator and denominator
Leaving 1/x+4

6 0

3 years ago

Need help with 9 please

Debora [2.8K]

Answer:

x = 5

y = 1

Step-by-step explanation:

So move 2y from the second equation to the other side of the equals sign

2x +3y = 13

x = 3 + 2y

From here substitute X into the first equation

2(3 + 2y) + 3y = 13

Distribute

6 + 4y +3y = 13

Combine like terms and solve for y

7y = 7

y = 1

insert result into the original equation.

x-2(1) = 3

x - 2 = 3

x = 5

insert into other equation to check work

2(5) + 3(1) = 13

10 + 3 = 13 correct

6 0

3 years ago

Write an inequality to describe the region represented on the number line.

vovangra [49]

Answer:

See explanation

Step-by-step explanation:

The question is incomplete, as the required number line is not included in the question.

A general explanation is as follows:

An open circle means > or <

A closed circle means >= or <=

Take, for instance, the attached number line:

The open dot on -3 means >-3 or <-3

The arrow points to the right direction, means >-3 i.e. greater than -3

Hence, the inequality is:

$x > -3$

7 0

3 years ago

Solve the equation: 2/3x+1/4=3

Lady_Fox [76]

Answer:

x = 33/8

Step-by-step explanation:

2/3 x + 1/4 = 3

Subtract 1/4 from both sides.

2/3 x = 3 - 1/4

2/3 x = 12/4 - 1/4

2/3 x = 11/4

Multiply both sides by 3/2.

3/2 * 2/3 x = 3/2 * 11/4

x = 33/8

8 0

3 years ago

Select the correct answer from each drop-down menu.

Aleks [24]

Answer:

$6x^2+5x-6=(3x-2)(2x+3)$

Step-by-step explanation:

<u>Given expression</u>:

$6x^2+5x-6$

To factor a quadratic in the form $ax^2+bx+c$ , first find two numbers that multiply to $ac$ and sum to $b$ :

$\implies ac=6 \cdot -6=-36$

$\implies b=5$

Two numbers that multiply to -36 and sum to 5 are: 9 and -4

Rewrite b as the sum of these two numbers:

$\implies 6x^2+9x-4x-6$

Factorize the first two terms and the last two terms separately:

$\implies 3x(2x+3)-2(2x+3)$

Factor out the common term (2x + 3):

$\implies (3x-2)(2x+3)$

Therefore:

$6x^2+5x-6=(3x-2)(2x+3)$

3 0

2 years ago

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