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sveticcg [70]
3 years ago
11

Solve integral (2x-5)⁷ dx​

Mathematics
1 answer:
trapecia [35]3 years ago
4 0

Answer: 128x^7dx-2240x^6dx+16800x^5dx-70000x^4dx+175000x^3dx-262500x^2dx+218750xdx-7812

Step-by-step explanation:

1) Expand : (2x-5\right)^7dxquad 128x^7dx-2240x^6dx+16800x^5dx-70000x^4dx+175000x^3dx-262500x^2dx

2) Distribute Parentheses

3) Apply your minus/plus rules

+(-a)= -a

128x^7dx-2240x^6dx+16800x^5dx-70000x^4dx+175000x^3dx-262500x^2dx+218750xdx-78125dx

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If $48,000 is invested in an account earning 3.1% interest compounded continuously, determine how long it will
Bas_tet [7]

Answer:

It will take about 35.439  years to triple.

Step-by-step explanation:

Recall the formula for continuously compounded interest:

A=P\,e^{r*t}

where "A" is the total (accrued or future) accumulated value, "r" is the rate (in our case 0.031 which is the decimal form of 3.1%), "P" is the principal, and "t" is the time in years (our unknown).

Notice also that even that the final amount we want to get is three times $48,000. So our formula becomes:

3\,*\,48,000=\,48,000\,\,e^{0.031\,*t}\\\frac{3\,*\,48,000}{48,000} =e^{0.031*t}\\3=e^{0.031*t}

Now,in order to solve for "t" (which is in the exponent, we use logarithms:

ln(3)=0.031\,*\,t\\t=\frac{ln(3)}{0.031} \\t=35.439 \,\,years

7 0
3 years ago
Help is very much appreciated.
Alecsey [184]

Answer:

5 + 5 =10

Step-by-step explanation:

it should have been 4 +6 = 10

3 0
3 years ago
PLEASE HELP!!!!!!
quester [9]

B

First you have to change 2 1/2 into 5/2

To multiply fractions use the method
Keep Change Flip

5/2 x 3/1 =15/2

Which simplifies to 7 1/2
6 0
3 years ago
Read 2 more answers
Evaluate the expression for the given values of the variables.
vfiekz [6]

Answer:

A

Step-by-step explanation:

Substitute the given values into the expression

2a² + cb

= 2(5)² + 3(11)

= 2(25) + 33

= 50 + 33

= 83 → A

7 0
2 years ago
What is 11 out of 25 as a percentage
Angelina_Jolie [31]
Ok, I'm not giving you the answer. Instead, I'm going to give you the way to solve it. Then, you can do it yourself, message it to me, and I will check it. 
Do .11 x 25. Remember to add the decimal back in. 
4 0
3 years ago
Read 2 more answers
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