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3 years ago

What is the area of the surface of a cookie was a diameter of 32 feet?

Mathematics

1 answer:

aliya0001 [1]3 years ago

4 0

That would be $\pi(32/2)^2\approx804.25\mathrm{ft^2}$ .

Hope this helps.

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Simplify the expression x^2+x-2/8x^2+4x/3x^2+10x+8

irina [24]

Answer:

Step-by-step explanation:

x² + x - 2 = x² - x +2x -2 = x(x - 1) + 2*(x-1) = (x-1)(x+2)

8x² + 4x = 4x ( 2x + 1)

3x² + 10x + 8 = 3x² + 6x + 4x + 4*2 =3x * (x + 2) + 4 * ( x + 2) = (x + 2)(3x + 4)

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3 years ago

Question 2(Multiple Choice Worth 1 points)

kramer

Answer:

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2 years ago

Peter has 3200 yards of fencing to enclose a rectangular area. Find the dimensions of the rectangle that maximize the enclosed a

salantis [7]

Answer:

$A = 640000\,yd^{2}$

Step-by-step explanation:

Expression for the rectangular area and perimeter are, respectively:

$A (x,y) = x\cdot y$

$3200\,yd = 2\cdot (x+y)$

After some algebraic manipulation, area expression can be reduce to an one-variable form:

$y = 1600 -x$

$A (x) = x\cdot (1600-x)$

The first derivative of the previous equation is:

$\frac{dA}{dx}= 1600-2\cdot x$

Let the expression be equalized to zero:

$1600-2\cdot x=0$

$x = 800$

The second derivative is:

$\frac{d^{2}A}{dx^{2}} = -2$

According to the Second Derivative Test, the critical value found in previous steps is a maximum. Then:

$y = 800$

The maximum area is:

$A = (800\,yd)\cdot (800\,yd)$

$A = 640000\,yd^{2}$

8 0

4 years ago

Read 2 more answers

A poll that does not attempt to generate a random sample, but instead invites people to volunteer to participate is called:_____

Helga [31]

Answer:

Self selection sampling.

Step-by-step explanation:

A poll that does not attempt to generate a random sample, but instead invites people to volunteer to participate is called - self selection sampling.

Self-selection sampling is a sampling method where researchers allow the people or individuals, to choose to take part in research on their own accord.

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3 years ago

The sum of two numbers is 60. One number is 4 times as large as the other. What are the numbers? Larger number: Smaller number:

Makovka662 [10]

Answer:larger=48, smaller=12

Source:trust me bro

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3 years ago