1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
tatiyna
3 years ago
8

Please help as soon as possible 50 points

Mathematics
2 answers:
Morgarella [4.7K]3 years ago
8 0

Answer:

the answer is d. 4x²+x-6

Step-by-step explanation:

In order to combine the fractions, they need to have the same denominator.

So, multiply each of their numerators by the denominator they need to be equivalent.

This would look like this:

3x/x+3 --> 3x(x)/x(x+3)        ---simplify this as--> 3x²/x(x+3)

x-2/x  --> (x-2)(x+3)/x(x+3)  ---simplify this as --> x²+x - 6/x(x+3)

3x                    3x(x)                                     x-2                   (x-2)(x+3)

-----      --->        -----                 and             --------   --->           ---------

x+3                   x(x+3)                                    x                        x(x+3)

now that both fractions have the same denominator, we can add their numerators.

3x² + x²+x-6 = 4x²+x -6

This should now look like this:

4x²+x -6

-------------

x(x+3)

Nadusha1986 [10]3 years ago
3 0

ANSWER:

On solving expression, we get

\longrightarrow\sf\frac{3x}{x + 3}  +  \frac{x - 2}{x}

\longrightarrow\sf\frac{{3x}^{2} + {x}^{2}  - 2x + 3x - 6  }{(x + 3)x}

\longrightarrow\sf\frac{{4x}^{2}  + x - 6}{ x(x + 3)}

So, <u>Correct choice</u> - [D]

\large\boxed{\sf\frac{{4x}^{2}  + x - 6}{ x(x + 3)}.}

You might be interested in
If Mr. O'Brien cuts five lawns per day at $40 each, and he has a goal of making $3500, how many days will it take to reach that
Ede4ka [16]

Answer:

17 days and a half.

Step-by-step explanation:

First, we can find how much money he makes per day cutting lawns. This can be found with the equation:

40 x 5 = 200

He makes $200 a day cutting lawns.

Now we can divide his goal money ($3500) by his daily rate ($200) to get the number of days it will take to reach his goal.

3500 ÷ 200 = 17.5

It will take him 17.5 days to reach his goal.

5 0
3 years ago
Read 2 more answers
Is 4=7 an example of no solution?
Jobisdone [24]
This doesn't make too much sense, since there is now way that 4 can equal to 7.
3 0
4 years ago
Read 2 more answers
When a survey asked subjects whether they would be willing to accept cuts in their standard of living to protect the​ environmen
gtnhenbr [62]

Answer:

(a) The point estimate of the proportion of the population who would answer yes is 0.295.

(b) The margin of error for a​ 95% confidence interval is 0.0259.

(c) 95% confidence interval for population proportion is [0.2691 , 0.3209].

Step-by-step explanation:

We are given that a survey asked subjects whether they would be willing to accept cuts in their standard of living to protect the​ environment, 352 of 1195 subjects said yes.

Let \hat p = <u><em>sample proportion of subjects who said yes.</em></u>

(a) The point estimate of the proportion of the population who would answer yes = \hat p =  \frac{X}{n}

So,  \hat p = \frac{352}{1195}  = <u>0.295</u>

(b) Margin of error is given by =  Z_(_\frac{\alpha}{2}_) \times \text{Standard of Error}

where, \alpha = level of significance = 1 - 0.95 = 5%

At 5% level of significance, z table gives critical value of 1.96 for two-sided interval.

Standard of error =  \sqrt{\frac{\hat p(1-\hat p)}{n} } =  \sqrt{\frac{0.295(1-0.295)}{1195} }  = 0.0132

So, Margin of error for 95% confidence interval = 1.96 \times 0.0132

                                                                               = <u>0.0259</u>

(c) 95% confidence interval for population proportion is given by =

                   Point estimate \pm Margin of error

              ⇒ 0.295 \pm 0.0259

              ⇒ [0.295 - 0.0259 , 0.295 + 0.0259]

              ⇒ [0.2691 , 0.3209]

So, 95% confidence interval = [0.2691 , 0.3209]

The numbers in this interval​ represent that we are 95% confident that the population proportion will lie between 0.2691 and 0.3209.

(d) Assumptions needed for constructing a confidence interval are;

  • The data must be sampled randomly.
  • Sample values must be independent of each other.
  • Data must follow normal distribution.
8 0
3 years ago
What is the additive inverse of the complex number 9 â€"" 4i? â€""9 â€"" 4i â€""9 4i 9 â€"" 4i 9 4i.
hram777 [196]

Additive inverse is the number you add to a given number to make the sum zero. The addition of both the number must be zero to make both numbers additive inverse.. The additive inverse of the given complex number is

-9+4i

<h3>Addictive Inverse</h3>

Addictive Inverse-Additive inverse is the number you add to a given number to make the sum zero. The addition of both the number must be zero to make both numbers additive inverse.

Let an example, if we take the number 10 and add -10 to it. Thus -10 is the additive inverse of the number 10.

Here, the given number is a complex number. A complex number is a number of the form a + bi, where a and b are real numbers. The given function is,

9-4i

The additive inverse of the above number is,-9+4i

Add both and check by equating with zero,

9-4i+(-9i+4)=0

9-4i+-9i+4=0

0=0

Hence, the additive inverse of the given complex number is -9+4i.

For more about the additive inverse, follow the link below-brainly.com/question/13715269

5 0
2 years ago
Read 2 more answers
Evaluate the equation below.<br> p + 333 = 350
ziro4ka [17]

Answer:

17

Step-by-step explanation:

350-333 = 17

p = 17

Or...

Subtract 3 from both sides of the equation

p+333=350

+333−333=350−333

p = 17

4 0
2 years ago
Read 2 more answers
Other questions:
  • Brainly.com
    9·2 answers
  • How to the solve the equation by completing the square?
    9·1 answer
  • Can i get a list of common factors of 24 30 42
    6·1 answer
  • This table gives a few (x,y) pairs of a line in the coordinate plane
    15·1 answer
  • Show work what is the measures
    10·1 answer
  • The points (4,1) and (x, -6) lie on the same line. If the slope of the line is 1, what is the value of x? A. X = -3 B. X = 3 C.
    9·1 answer
  • Please help me this is for my exam and i need to pass this or i won’t graduate. please !!!!!!!!
    15·1 answer
  • How many whole numbers "n" satisfy the inequality shown ?<br> 1/9&lt;1/sqroot of n&lt;1/7
    11·1 answer
  • Write 0.25 miles as a fraction in simplest form
    12·2 answers
  • What is 30% of 150? Thanks.
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!