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Vlada [557]
3 years ago
5

(-102.750 divided by (-3) rounded to the nearest hundred

Mathematics
2 answers:
AnnZ [28]3 years ago
6 0
34.25 is your answer (no negative because a negative divided or multiplied by a negative is a positive) brainliest pls
Zina [86]3 years ago
4 0
(-102.750) / (-3) = 34.25
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Step-by-step explanation:

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The diameter of a circle is 6 ft. Find its area to the nearest tenth
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Step-by-step explanation: Please brainliest!

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How do you find an equivalent ratio?
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Find the equation of the tangent of x^2- xy + y^2 =7 at (-1, 2)
Citrus2011 [14]

Answer:

<u>It</u><u> </u><u>is</u><u> </u><u>3</u><u>y</u><u> </u><u>=</u><u> </u><u>4</u><u>x</u><u> </u><u>+</u><u> </u><u>1</u><u>0</u>

Step-by-step explanation:

Let's first get the slope of the curve.

[ slope is the derivative of the equation ]

{x}^{2}  - xy +  {y}^{2}  = 7

introduce dy/dx :

\frac{d}{dx} ( {x}^{2}  - xy +  {y}^{2} ) =  \frac{d}{dx} (7) \\  \\ 2x - (y +  \frac{dy}{dx} ) + 2y \frac{dy}{dx}  = 0

make dy/dx the subject:

2x - y -  \frac{dy}{dx}  + 2y \frac{dy}{dx}  = 0 \\  \\ 2y \frac{dy}{dx}  -  \frac{dy}{dx}  = y - 2x \\  \\  \frac{dy}{dx} (2y - 1) = y - 2x \\  \\  \frac{dy}{dx}  =  \frac{y - 2x}{2y - 1}

At point (-1, 2):

\frac{dy}{dx}  =  \frac{2 - 2( - 1)}{2(2) - 1}  \\  \\ slope =  \frac{4}{3}

but a tangent has the same slope as the curve:

y = mx + c

m is the slope

c is the y-intercept

At (-1, 2):

2 = ( - 1 \times  \frac{4}{3} ) + c \\  \\ c = 2 +  \frac{4}{3}  \\  \\ c =  \frac{10}{3}

equation:

y =  \frac{4}{3} x +  \frac{10}{3}  \\  \\ { \boxed{3y = 4x + 10}}

8 0
3 years ago
Read 2 more answers
the perimeter of a rectangle is 34 units. it’s width is 6.5 units. write an equation to determine the length (l) of the rectangl
icang [17]

Answer:

perimeter of rectangle= 2(l+w)

34=2(l+6.5)

34= 2l+13

2l=34-13

<u>2l</u>=<u>21</u>

2. 2

l= 10.5 units

8 0
3 years ago
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