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3 years ago

PLEASE PLEASE HELP ME NO DOWNLOADABLE FILES How many solutions y=2x^2+9x

Mathematics

2 answers:

tino4ka555 [31]3 years ago

8 0

There is 2 solutions to this problem

lisabon 2012 [21]3 years ago

7 0

Answer:

There's going to be 2 solutions

Step-by-step explanation:

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If (x 2y)dy/dx=2x-y what is the value of.

Radda [10]

The second differential of the function is 3/7

Given the differential function $(x +2y)=\frac{dy}{dx} (2x-y)$

Differentiate both sides with respect to x implicitly

$(x +2y)=\frac{dy}{dx} (2x-y)$

$1+2y'=y"(2x-y)+y'(2-y') \\y''=\frac{1+2y'}{(2x-y)+y'(2-y') }$

Get the first derivative at the point (3, 0)

$y'=\frac{2x-y}{x+2y} \\y'=\frac{2(3)-0}{0+2(3)}\\y'=\frac{6}{6} \\y'=1$

Substitute into the second derivative to have:

$y''=\frac{1+2y'}{(2x-y)+y'(2-y') }\\y''=\frac{1+2(1)}{(2(3)-0)+(1)(2-(1)) }\\y''=\frac{3}{6+1} \\y''=\frac{3}{7}$

Hence the second differential of the function is 3/7

learn more on differential equation here; brainly.com/question/18760518

Complete question:

If (x 2y)dy/dx=2x-y what is the value of $\frac{d^2y}{dx^2}$ the point (3,0)

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2 years ago

Find the standard form of the complex number 6(cos(30degree) +i sin (30 degree))

Marat540 [252]

Answer:

= 3√3 + 3i

Step-by-step explanation:

Cos 30° = √3/2

Sin 30° = 1/2

Therefore;

z = 6 (cos 30° + i6 sin 30°)

= 6 (√3/2) + i 6 (1/2)

= 3√3 + 3i

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3 years ago

Convert:<br> 61⁄2 feet = how many inches

gladu [14]

Answer: 78 inches

Step-by-step explanation: looked it up on google

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3 years ago

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Vilka [71]

Answer:

translated 5 units to the right

Step-by-step explanation:

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3 years ago

Please help me and hurry thx

MrRissso [65]

Answer:

10 percent chance because there's 10 tiles in total and percentages have to add up to 100

Step-by-step explanation:

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3 years ago