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iragen [17]
3 years ago
10

Joe, who is 12, has $8,000 in a bank account that pays a 6% annual interest

Mathematics
1 answer:
andriy [413]3 years ago
7 0

Answer:

15

Step-by-step explanation:

but not for sure

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The farmer owned 100 acres of land. A year later he bought more property and then owned 140 acres. Is this a percent increase or
Grace [21]

Answer:

The percentage change (an increase) wa 40%.

Step-by-step explanation:

The beginning number of acres was 100; adding 40 more brought that to 140 acres.  This was an increase.  Dividing the increase (40) by the starting value (100) yields 0.40.  Finally, multiplying this result by 100% yields 40%.

The percentage change (an increase) wa 40%.

6 0
3 years ago
Use the equation y= 4x-4 to complete the table.
Anon25 [30]

Answer:

y = kx ⇒

k = y/x = 5/7

5 0
3 years ago
Read 2 more answers
Solve the given differential equation by undetermined coefficients. y'' 4y = 7 sin(2x)
kherson [118]

The solution to the given differential equation is yp=−14xcos(2x)

The characteristic equation for this differential equation is:

P(s)=s2+4

The roots of the characteristic equation are:

s=±2i

Therefore, the homogeneous solution is:

yh=c1sin(2x)+c2cos(2x)

Notice that the forcing function has the same angular frequency as the homogeneous solution. In this case, we have resonance. The particular solution will have the form:

yp=Axsin(2x)+Bxcos(2x)

If you take the second derivative of the equation above for  yp , and then substitute that result,  y′′p , along with equation for  yp  above, into the left-hand side of the original differential equation, and then simultaneously solve for the values of A and B that make the left-hand side of the differential equation equal to the forcing function on the right-hand side,  sin(2x) , you will find:

A=0

B=−14

Therefore,

yp=−14xcos(2x)

For more information about differential equation, visit

brainly.com/question/18760518

8 0
2 years ago
Twice the sum of a number and 5 is 22. What is the number
alexira [117]

Answer:

x=8.5

Step-by-step explanation:

Write an equation

2x+5=22

x represents he unknown number

Solve for x:

2x+5-5=22-5

2x=17

2x/2=17/2

x=8.5

6 0
3 years ago
Read 2 more answers
Pls help i give brainliest
slavikrds [6]

Answer: B no

Step-by-step explanation:

Plot in the x and y coordinates into the equation to solve it.

The x coordinate is  4 and the y coordinate is 1  

-4(4) +3(1)= 2

-16 + 3 = 2

-13 ≠2

-13 does not equal 2 so (4,1) is not a solution.

5 0
4 years ago
Read 2 more answers
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