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
mariarad [96]
3 years ago
7

Find the sum. 5 2a a? + 2a + 1 + a2 + 4a + 3

Mathematics
2 answers:
Vinvika [58]3 years ago
7 0

Answer:

=  \frac{2 {a}^{2}  + 11a + 5}{  {(a + 1)}^{2}(a + 3)} \\

Step-by-step explanation:

\frac{2a}{ {a}^{2}  + 2a + 1} +  \frac{5}{ {a}^{2} + 4a + 3 } \\  \frac{2a}{(a + 1)(a + 1)}    +  \frac{5}{(a + 1)(a + 3)}  \\   \frac{2a}{ {(a + 1)}^{2} }  +  \frac{5}{(a + 1)(a + 3)}  \\  \frac{2a(a + 3) + 5(a + 1)}{ {(a + 1)}^{2}(a + 3) }  \\  \frac{2 {a}^{2} + 6a + 5a + 5 }{ {(a + 1)}^{2}(a + 3)} \\  =  \frac{2 {a}^{2}  + 11a + 5}{  {(a + 1)}^{2}(a + 3)}

Salsk061 [2.6K]3 years ago
5 0

\frac{2a}{a^2+2a+1}+\frac{5}{a^2+4a+3}

Factor the denominators.

\frac{2a}{\left(a+1\right)^2}+\frac{5}{\left(a+1\right)\left(a+3\right)}

Adjust fractions based on LCM.

\frac{2a\left(a+3\right)}{\left(a+1\right)^2\left(a+3\right)}+\frac{5\left(a+1\right)}{\left(a+1\right)^2\left(a+3\right)}

Denominators are same, so add the fractions.

\frac{2a\left(a+3\right)+5\left(a+1\right)}{\left(a+1\right)^2\left(a+3\right)}

Expand the numerator.

\frac{2a^2+11a+5}{\left(a+1\right)^2\left(a+3\right)}

You might be interested in
The The graph of g(x) is the result of translating the graph of f(x) = 3x six units to the right. What is the equation of g(x)?
kolbaska11 [484]

<u>Translation</u> the <u>graph</u> of the <u>function</u> y=f(x) a units <u>to the right</u> gives you the function y=f(x-a).

If the graph of the function f(x)=3^x is translated 6 units to the right, then the function becomes

g(x)=f(x-6)=3^{x-6}.

Answer: correct choice is A

3 0
3 years ago
Read 2 more answers
what is the arc length of a circle that has a 6-inch radius and a central angle that is 65 degrees? use 3.14 for π and round you
Vinvika [58]
The answer is C.

The arc length is 6.806784.

Hope this helps.
3 0
3 years ago
Read 2 more answers
What is 6x10 to the negative third power
kakasveta [241]

60 to the negative 3 power

3 0
3 years ago
In the month of June, the temperature in Johannesburg, South Africa, varies over the day in a periodic way that can be modeled a
Art [367]

Answer:

The answer is "\bold{T = - 7.5 \cos \frac{\pi}{12}( t - 4 )+ 10.5}"

Step-by-step explanation:

Given value:

Temp-maximum=18^{\circ}  

Temp. minimum = 3^{\circ}

It is halfway between 10 am and 10 pm to 4 am.  

The sinus and cosine roles could be used throughout the year to predict fluctuations in climate models. Its type of formula that can be used to model such information is:  

T = A \cos B(t-C) + D, where parameters are A, B , C, D, T is the ° C temperature and t is the time (1-24)

A = amplitude = \frac{(T_{max} - T_{min})}{2}\\\\

                       = \frac{(3 - 18)}{2}\\\\= - \frac{15}{2}\\\\ = -7.5

B = \frac{2 \pi}{24}\\\\

   = \frac{\pi}{12}

C = \text{ units translated to the right}= 4

D = y_{min} + amplitude = units \ translated \ up\\\\

D = 7.5 + 3 = 10.5

Its trigonometric function equation that model temperature T hours after midnight in Johannesburg t.

T = - 7.5 \cos \frac{\pi}{12}( t - 4 )+ 10.5

6 0
3 years ago
Answer the question on the image underneath
Nadya [2.5K]

Answer:

I think it's A. sorry if i'm wrong.

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Is y=8.5x a proportional relationship? If so, why? If not, why?
    12·1 answer
  • What is the value of 63,108 divide by 72
    9·2 answers
  • Given a soda can with a volume of 36 and a diameter of 4, what is the volume of a cone that fits perfectly inside the soda can?
    8·2 answers
  • melissa bought 12 packages of stickers that cost $1.94 each before tax and 18 packages of paper that cost $3.29 each before tax.
    13·1 answer
  • What is 2000 plus 5050??
    13·2 answers
  • Please help thanks!!!
    11·1 answer
  • A point is chosen at random on AK.
    15·1 answer
  • Type the correct answer in each box. Use numerals instead of words.
    14·2 answers
  • Round each decimal to the nearest tenth<br> 4. 13.392<br> 5. 27.149<br> 6.8.84858<br> Help!!
    14·1 answer
  • Two walkers 16 miles apart travel toward each other. One travels 3 miles per hour, and the other 4 miles per hour. If the latter
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!