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Ede4ka [16]
2 years ago
14

Please help!!! I will give you BRIANLEIST AND A HEARTED COMMENT AND 5 STARS if you can explain this:(

Mathematics
1 answer:
Agata [3.3K]2 years ago
4 0

Answer:

I can do this give me a min

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Find the sum.<br> 5<br> 2a<br> a? + 2a + 1<br> +<br> a2 + 4a + 3
Salsk061 [2.6K]

\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)}

5 0
3 years ago
Read 2 more answers
See attached file for question
Leto [7]

Answer:

1/6

Step-by-step explanation:

1/3 + 1/2= <em>1</em><em>/</em><em>6</em><em>. </em><em> </em><em> </em><em> </em><em> </em><em> </em><em>so</em><em> </em><em>1</em><em>/</em><em>6</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>answer</em>

4 0
3 years ago
Step by step, to find solution to -4(6n-4)+3n=
Dimas [21]

Answer:

-21n + 16

Step-by-step explanation:

Start with distributive property

-24n + 16 + 3n

Combine like terms

-21n + 16

There is a part of the equation missing so I can't solve completely

7 0
3 years ago
Read 2 more answers
Inquiries arrive at a record message device according to a Poisson process of rate 15 inquiries per minute. The probability that
zloy xaker [14]

Answer:

0.0498 = 4.98%

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

In which

x is the number of sucesses

e = 2.71828 is the Euler number

\mu is the mean in the given time interval.

Inquiries arrive at a record message device according to a Poisson process of rate 15 inquiries per minute.

Each minute has 60 seconds.

So a rate of 1 inquire each 4 seconds.

The probability that it takes more than 12 seconds for the first inquiry to arrive is approximately

Mean of 1 inquire each 4 seconds, so for 12 seconds \mu = \frac{12}{4} = 3

This probability is P(X = 0).

P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}

P(X = 0) = \frac{e^{-3}*3^{0}}{(0)!} = 0.0498

5 0
3 years ago
The ratio of thomson's age to racheal's age is 2:3.racheal is 24 years old. how old is thomson?
Tatiana [17]

2:3

Given Racheal = 24 years

Thomson = 2/3×24

= 2×8

= 16 years

Must click thanks and mark brainliest

8 0
3 years ago
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