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fomenos
4 years ago
9

What number represents 125638 rounded to the nearest hundred

Mathematics
2 answers:
Evgen [1.6K]4 years ago
6 0
The number is 127000...
skelet666 [1.2K]4 years ago
3 0
The answer is 125,600 so that is your answer
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Show that ( 2xy4 + 1/ (x + y2) ) dx + ( 4x2 y3 + 2y/ (x + y2) ) dy = 0 is exact, and find the solution. Find c if y(1) = 2.
fredd [130]

\dfrac{\partial\left(2xy^4+\frac1{x+y^2}\right)}{\partial y}=8xy^3-\dfrac{2y}{(x+y^2)^2}

\dfrac{\partial\left(4x^2y^3+\frac{2y}{x+y^2}\right)}{\partial x}=8xy^3-\dfrac{2y}{(x+y^2)^2}

so the ODE is indeed exact and there is a solution of the form F(x,y)=C. We have

\dfrac{\partial F}{\partial x}=2xy^4+\dfrac1{x+y^2}\implies F(x,y)=x^2y^4+\ln(x+y^2)+f(y)

\dfrac{\partial F}{\partial y}=4x^2y^3+\dfrac{2y}{x+y^2}=4x^2y^3+\dfrac{2y}{x+y^2}+f'(y)

f'(y)=0\implies f(y)=C

\implies F(x,y)=x^2y^3+\ln(x+y^2)=C

With y(1)=2, we have

8+\ln9=C

so

\boxed{x^2y^3+\ln(x+y^2)=8+\ln9}

8 0
3 years ago
What is the resulting number when you add 5 ten thousands to 932,000?
ipn [44]
The answer would be 932,000.005
7 0
4 years ago
Read 2 more answers
Find the midpoint of the line segment that joins points P(-4,3) and Q(9,14)?
k0ka [10]

Given the following points:

Point P: (-4, 3)

Point Q: (9, 14)

To be able to find the midpoint of the line segment, we will be using the following formula:

\text{ Midpoint = }\frac{x_1+x_2}{2},\frac{y_1+y_2_{}}{2}

We get,

\text{ Midpoint = }\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}\text{= }\frac{(-4)+(9)_{}}{2},\frac{3_{}+14_{}}{2}\text{ = }\frac{5}{2},\frac{17}{2}

Therefore, the midpoint of the line segment is 5/2, 17/2.

7 0
1 year ago
A coin is tossed twice in succession. Let A be the event that the first toss is heads and let B the event that the second toss i
Alenkinab [10]

Answer:

Step-by-step explanation:

A coin has two faces, a head (H) or tail (T). Tossing a coin twice in succession would give the following sample size;

                                 {HH, HT, TH, TT}

Given that: A = first toss is heads, B = second toss is heads, then:

i. P(A) = {HH, HT} = 2

ii. P(B) = {TH} = 1

iii. P(A∩B) = {HH} = 1

iv. P(B /A) = \frac{1}{2}

3 0
3 years ago
Please help me asap really important
vichka [17]

Answer:

r = 3cm

h = 20cm

SA = 433.32cm^3

Step-by-step explanation:

If you use 3.14 for pi you will get 433.32.

Plz mark brainliest if this helped!!!

5 0
3 years ago
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