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3 years ago

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A rope 18 feet long is cut into two pieces. one piece is used to form a circle and the other used to form a square. find a funct

ion representing the area of both square and circle as a function of the length of one side of the square.

1 answer:

Svetach [21]3 years ago

3 0

Please give me a brainliest for this, it was so much work. The answer is

f(x)=x^2 + (4x^2 -18x +81)/pi

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Identify the type of conic section that has the equation 9x2+ 16y2 = 144 and identify its domain and range.

Kobotan [32]

9 x² + 16 y² = 144 /:144
$\frac{ x^{2} }{16} + \frac{ y^{2} }{9} =1$
General formula of ellipse ( the center is at the origin ): $\frac{ x^{2} }{ a^{2} }+ \frac{ y^{2} }{ b^{2} } =1$
a² = 16, b² = 9
Domain: [-a, a ] = [-4, 4]
Range:[-b, b ]
Answer: B ) ellipse.
Domain: { -4 ≤ x ≤ 4 }
Range: { -3 ≤ y ≤ 3 }

8 0

3 years ago

Samantha ran on a fitness track for 20 min, and then walked for 15 min. Her running rate was 230 ft per minute faster than her

Mnenie [13.5K]

Answer:

560 ft/min

Step-by-step explanation:

Let r represent Samantha's running rate in feet per minute. Then r-230 is her walking rate. We can use the relation ...

distance = speed × time

to write an equation for the total distance Samantha went.

20r + 15(r -230) = 16150

35r - 3450 = 16150 . . . . eliminate parentheses, collect terms

35r = 19600 . . . . . . . . . . add 3450

r = 560 . . . . . . . . . . . . . . divide by the coefficient of r

Samantha ran 560 feet per minute.

5 0

3 years ago

Help me out:)i need an answer as soon as possible!!!

kifflom [539]

Answer is c , got it right

5 0

3 years ago

pav-90 [236]

The first ones b.........

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3 years ago

2. The picture shows a feeding trough that is shaped like a right prism.

Nina [5.8K]

Answer:

B

Step-by-step explanation:

8 0

3 years ago