<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D%20-6x%2B8" id="TexFormula1" title="x^{2} -6x+8" alt="x^{2} -6x+8" align="absmiddle

natka813 [3]

2 years ago

" class="latex-formula">
Select equivalent expressions in factored form for the expression

Mathematics

1 answer:

maxonik [38]2 years ago

4 0

When factored the answer is (x-4)(x-2)

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Sally is 10 years old. Her mother is five times older. How old Sally's mom?

Marat540 [252]

Sally is 10 years old. <span>Her mother is five times older. </span>If this is put into an equation: x = (age of sally)(5)
x = (10)(5)
x = 50 years
Sally's mom is 50 years old.

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2 years ago

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

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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

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

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2 years ago

Which choice shows y=2x+2 and y=2^x correctly paired with their graphs?

diamong [38]

Answer:

The second option.

Step-by-step explanation:

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Jake is constructing a triangle. He drew a side length that is 8 inches long and another side length that is 13 inches long. Whi

Luba_88 [7]

Answer:

A. 5

Step-by-step explanation:

because 13 is the hypotenuse and 8 is the sine

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Answer:

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Step-by-step explanation:

1:6

I hope this answer is correct

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2 years ago

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