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Lilit [14]
3 years ago
14

What is the area of a circle whose radius is 20 meters

Mathematics
1 answer:
Andrews [41]3 years ago
8 0
A≈1256.64 m² thats the answer
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What is the simplest form of x^4 y^7 / 3 square root x^10 y^4
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X ^ 14 y ^ 11 / square root of 3
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3 years ago
Find dy/dx by implicit differentiation. y cos x = 5x2 + 3y2
lbvjy [14]
Step 1:
Start by putting \frac{d}{dx} in front of each term

\frac{d}{dx}[y cos x]= \frac{d}{dx}[5x^2]+ \frac{d}{dx}[ 3y^2]
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Step 2:

Deal with the terms in 'x' and the constant terms
\frac{d}{dx}[ycosx]= 10x+ \frac{d}{dx} [3y^2]
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Step 3:

Use the chain rule for the terms in 'y'
\frac{d}{dx}[ycosx]=10x+6y \frac{dy}{dx}
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Step 4:

Use the product rule on the term in 'x' and 'y'
(y) \frac{d}{dx} cos x+(cos x) \frac{d}{dx}y =10x+6y \frac{dy}{dx}

y(-siny)+(cosx) \frac{dy}{dx} =10x+6y \frac{dy}{dx}
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Step 5:

Rearrange to make \frac{dy}{dx} the subject
-y sin(y)+cos(x) \frac{dy}{dx} =10x+6y \frac{dy}{dx}
cos(x)  \frac{dy}{dx}-6y \frac{dy}{dx}=10x+y sin(y)
[cos(x) - 6y]  \frac{dy}{dx}=10x + y sin(y)
\frac{dy}{dx}= \frac{10x+ysin(y)}{cos(x)-6y} ⇒ Final Answer


5 0
3 years ago
What is the slope of the line that passes through these two points?​
Montano1993 [528]

Answer:

slope of the line is 0

Step-by-step explanation:

given points are:

(-3 , 2)=(x1 , y1)

(4 , 2)=(x2 , y2)

slope =y2 - y1/x2 - x1

=2-2/4-(-3)

=0/4+3

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=0

4 0
2 years ago
The area of the rectangle window is4779 cm to the second power if the length of the window is 81 cm what is the width
TiliK225 [7]

9514 1404 393

Answer:

  59 cm

Step-by-step explanation:

The area is the product of length and width. Using the given numbers, we have ...

  A = LW

  4779 cm² = (81 cm)W

  W = (4779 cm²)/(81 cm) = 59 cm

The width of the window is 59 cm.

8 0
3 years ago
Please help me I’m begging you
tatuchka [14]

Answer:

i beleive the answer would be 90

Step-by-step explanation:

im begginggggggg, begging, beg youuuuu

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3 years ago
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