3 years ago

Aye can u help me ??

Mathematics

1 answer:

svetoff [14.1K]3 years ago

4 0

Answer:

I have the same question let me know if you get the answer

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Another math question :)

Travka [436]

Lets x = Mary's age

Emily is there years older than twice her sister Mary's age = 2x + 3

Sum of both is less than 30:

x + 2x + 3 < 30

Solve for x

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Mary's age = 9

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0 < x < 9

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PLEASE HELP fast !!!

mezya [45]

Answer:

Yes

Step-by-step explanation: No do you work

8 0

3 years ago

그는 [d (7x2 + 37 0) 를 0 (24 3) 4 10 ○ (7x2+3) 4+c ○ (x3)6+c 급 (7x + 3) 6 5

IRINA_888 [86]

the given expression is,

$\int \frac{x}{(7x^2+3)^5}dx$

take P = 7x^2 + 3

differentiate the function,

$\begin{gathered} dp=14x\times dx \\ xdx=\frac{dp}{14} \end{gathered}$

put the values.,

$\int \frac{1}{14}\frac{dp}{p^5}$ $\begin{gathered} =\frac{1}{14}\int \frac{dp}{p^5} \\ =\frac{1}{14}\times\frac{P^{-5+1}}{-5+1}+C \end{gathered}$ $\begin{gathered} =\frac{1}{14}\times\frac{1}{-4}P^{-4}+C \\ =-\frac{1}{56}P^{-4}+C \end{gathered}$

now put the value of P = 7x^2 + 3

$=-\frac{1}{56}(7x^2+3)^{-4}+C$

thus, the correct answer is option A

6 0

1 year ago