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KonstantinChe [14]
3 years ago
7

What is the slope of the line represented by the equation ?

Mathematics
1 answer:
Rzqust [24]3 years ago
5 0

Answer:

I think is 10 because 2 negatives make a positive and 2 would make the answer -10

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Verify by direct substitution that the given power series is a solution of the indicated differential equation. [Hint: For a pow
shepuryov [24]

Answer:

The given power series y =\sum^{\infty}_{n=0} {(-1)^n x^{2n}} is a solution of the differential equation (1+x^2)y' + 2xy = 0

Step-by-step explanation:

This is a very trivial exercise, follow the steps below for the solution:

Step 1: Since n = 0, 1, 2, 3, 4, ........, Substitute the values of n into equation (1) below.

y =\sum^{\infty}_{n=0} {(-1)^n x^{2n}}.....................(1)

y = 1 - x^2 + x^4 - x^6 + x^8.........

Step 2: Find the derivative of y, i.e. y'

y' = -2x + 4x^3 - 6x^5 + 8x^7 .............

Step 3: Substitute y and y' into equation (2) below:

(1+x^2)y' + 2xy = 0\\\\(1+x^2)(-2x + 4x^3 - 6x^5 + 8x^7......) + 2x(1 - x^2 + x^4 - x^6 + x^8.......) = 0\\\\-2x+ 4x^3 - 6x^5 + 8x^7........ - 2x^3 +4x^5 - 6x^7 + 8x^9 ......+ 2x - 2x^3 + 2x^5 - 2x^7 + 2x^9...... = 0\\\\0 = 0

(Verified)

Since the LHS = RHS = 0, the given power series y =\sum^{\infty}_{n=0} {(-1)^n x^{2n}} is a solution of the differential equation (1+x^2)y' + 2xy = 0

6 0
3 years ago
How do you find the width of a number when you have the feet and total area
mart [117]
Area=legnth times width
so if you know the area then solve for width
area=legnth times width
divide both sdies by legnth
area/legnth=width

if you have the legnth then you can solve
area divided by legnth=width
7 0
3 years ago
Read 2 more answers
What is the value of Tan θ?
abruzzese [7]

Answer:

I believe the answer is -4/3

Step-by-step explanation:

4 0
3 years ago
One question please help a friend out thanks you guys :-)
Dahasolnce [82]
3 degrees per day is your answer to this one

7 0
2 years ago
Mark runs back and forth on a football field for a total of 3000 yards. How many miles did Mark run to the nearest tenth of a mi
gizmo_the_mogwai [7]

Answer:

1.7 miles.

Step-by-step explanation:      

We have been given that Mark runs back and forth on a football field for a total of 3000 yards.

Since we know that 1 mile equals to 1760 yards. To find the number of miles Mark ran we will divide 3000 yards by number of yards in one mile (1760).

\text{ Mark ran}=\frac{3000\text{ yards}}{1760\frac{\text{yards}}{\text{mile}}}

\text{ Mark ran}=\frac{3000\text{ yards}}{1760}\times \frac{\text{miles}}{\ext{yards}}

After cancelling out yards from numerator and denominator we will get,

\text{ Mark ran}=\frac{3000}{1760} \text { miles}}

\text{ Mark ran}=1.7045454545454545\text{ miles}}\approx 1.7\text { miles}}

Therefore, Mark ran 1.7 miles on the football field.          

5 0
3 years ago
Read 2 more answers
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