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3 years ago

Write an inequality, in slope-intercept form, for the graph below. to get you started y>=

Mathematics

1 answer:

DaniilM [7]3 years ago

7 0

the inequality is : y<-2x+4

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Solve the initial value problem yy′+x=x2+y2‾‾‾‾‾‾‾√ with y(1)=8‾√. To solve this, we should use the substitution u= x^2+y^2 help

leva [86]

Looks like the equation is

$yy'+x=\sqrt{x^2+y^2}$

Substitute $u(x)=x^2+y(x)^2$ , so that $u'=2x+2yy'$ . Then the equation is the same as

$\dfrac{u'-2x}2+x=\sqrt u\implies u'=2\sqrt u\implies\dfrac{\mathrm du}{2\sqrt u}=\mathrm dx$

Integrate both sides to get

$\sqrt u=C\implies\sqrt{x^2+y^2}=C$

Given that $y(1)=\sqrt8$ , we have

$\sqrt{1^2+(\sqrt8)^2}=C\implies C=3$

so the solution is

$\sqrt{x^2+y^2}=3$

7 0

2 years ago

Distance between (-4,4) and (2,4)

9966 [12]

For this case we have that by definition, the distance between two points is given by:

$d = \sqrt {(x_ {2} -x_ {1}) ^ 2+ (y_ {2} -y_ {1}) ^ 2}$

We have to:

$(x_ {1}, y_ {1}) = (- 4,4)\\(x_ {2}, y_ {2}) = (2,4)$

Substituting:

$d = \sqrt {(2 - (- 4)) ^ 2+ (4-4) ^ 2}\\d = \sqrt {(2 + 4) ^ 2 + (4-4) ^ 2}\\d = \sqrt {(6) ^ 2 + (0) ^ 2}$

$d = \sqrt {36}\\d = 6$

ANswer:

$d = 6$

6 0

3 years ago

Read 2 more answers

✓-64<br> What is the square root of negative 64

IRINA_888 [86]

Answer

no answer

Step-by-step explanation:

there is no number that would be negative when square up

3 0

3 years ago

Read 2 more answers

Hi watts upp its me the CRACKHEAD who has a sister and doesnt wanna help her so she asks brainly to help her sister instead! Any

Ahat [919]

Answer:

Refexive I think

Step-by-step explanation:

5(3) = 3(5)

x(y) = y(x)

I found this

"Anything equals itself: this is the "reflexive" (reflecting onto itself) property. Also, it doesn't matter which order the equality is in; if x = y, then y = x: this is the "symmetric" (they match) property."

8 0

3 years ago

Four friends go out to dinner and decide to split the bill evenly. Each friend orders a soda for $2.00, an entree for $12.99 and

S_A_V [24]

Total bill-$67.95
each friends owes about $16.99

6 0

2 years ago

Write an inequality, in slope-intercept form, for the graph below. to get you started y>=​

Write an inequality, in slope-intercept form, for the graph below. to get you started y>=