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3 years ago

Solve using row operations: 3x – 2y + 5z = - 17 2x + 4y - 3z = 29 5x - 6y - 72 = 7

Mathematics

1 answer:

harina [27]3 years ago

6 0

Solutions on pics

please review if not commet for doubts

The answers are as follows

pic 1 exc 2

pirc 1 exc 1

pic 3 exc3

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Please help the answer cannot be a fraction (I have no clue)

bonufazy [111]

Answer:

1.25

Step-by-step explanation:

cause 5/4÷ 12/12 is 1/8 and 1/8 as a decimal is 1.25.

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3 years ago

4 in. 5 in. 2 in. 4 in. 5 in. 5 in.

Eddi Din [679]

Answer:

I need to see the whole question but I believe you just add the numbers

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3 years ago

Find the indefinite integral. (Use C for the constant of integration.) e2x 25 e4x dx.

Sladkaya [172]

Answer:

The solution is $\frac{1}{10} * tan^{-1}[\frac{e^{2x}}{5} ] + C$

Step-by-step explanation:

From the question

The function given is $f(x) = \frac{e^{2x}}{ 25 + e^{4x}} dx$

The indefinite integral is mathematically represented as

$\int\limits {\frac{e^{2x}}{ 25 + e^{4x}}} \, dx$

Now let $e^{2x} = u$

=> $\frac{du}{dx} 2e^{2x}$

=> $2 e^{2x}dx = du$

$\int\limits {\frac{e^{2x}}{ 25 + e^{4x}}} \, dx = \int\limits {\frac{1}{ 2(25 + u^2)} } \, du$

$= \frac{1}{2} \int\limits {\frac{1}{ 25 + u^2)} } \, du$

$= \frac{1}{2} \int\limits {\frac{1}{ 5^2 + u^2)} } \, du$

$= \frac{1}{2} \frac{tan^{-1} [\frac{u}{5} ]}{5} + C$

Now substituting for u

$\frac{1}{10} * tan^{-1}[\frac{e^{2x}}{5} ] + C$

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3 years ago

Customers arrive at a bank at a rate of 12/hour. It takes the clerk on average 4 minutes to help each customer. a. What is the a

-Dominant- [34]

Answer:

Step-by-step explanation:12 customers per hour..

4minutes per customer..

Time customers must wait= 12customers ×4minutes =48 minutes.. The clerk use 48minutes to attend to 12customers in one hour leaving him with 12spare minutes.

(B)since the clerk has 12 minute to spare it means each customer have a minute to wait before getting attention..

(C)number of customers waiting =12/2=6customers...

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3 years ago

There's 18 deer and 52 lions if 10 lions eat 17 deer how many deer are left

Mamont248 [21]

Answer:

1 deer

Step-by-step explanation:

18 deer minus 17 eaten leaves 1 deer

7 0

2 years ago

Read 2 more answers