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Mariulka [41]
3 years ago
6

Find the two values for 81 squared

Mathematics
2 answers:
slava [35]3 years ago
7 0
The two values are positive 9 and negative 9
adell [148]3 years ago
6 0
The answer is plus or minus nine
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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)

7 0
2 years ago
7<4q-9 ALGEBRA:) Need help Please! Gracias!!
Vanyuwa [196]

Answer:

q > 4

Step-by-step explanation:

Step 1: Write inequality

7 < 4q - 9

Step 2: Solve for <em>q</em>

<u>Add 9 to both sides:</u> 16 < 4q

<u>Divide both sides by 4:</u> 4 < q

Here, we can see that any number greater than 4 will work. So even 23573489079357 would work, as long as it is greater than 4.

6 0
3 years ago
Please answer this ASAP
Amanda [17]

Answer: 2x and y= 4+

Step-by-step explanation:

x = 2 times 2 and so on....

y = 4 plus 4 plus 4 etc....

3 0
3 years ago
Multiply (-4)(-2)(-5).<br> -40<br> -8<br> 08<br> 40
amid [387]

Answer:

<h2>-40</h2>

Step-by-step explanation:

(-4)(-2)(-5)\\\\\mathrm{Remove\:parentheses}:\\\quad \left(-a\right)=-a,\:-\left(-a\right)=a\\\\=-4\times\:2\times\:5\\\\=-40

4 0
3 years ago
Read 2 more answers
HELPP<br> Simplify the expression 6^3+ 5(4 − 2).<br><br> 28<br> 36<br> 226<br> 234
mamaluj [8]

Answer:

BODMAS

{6}^{3 }  + 5(4 - 2) = 216 + 5(2)   \\  = 216 + 10 \\  = 226

5 0
2 years ago
Read 2 more answers
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