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3 years ago

PLEASE HELP ASAP!!

Mathematics

2 answers:

IRINA_888 [86]3 years ago

4 0

Answer:

$how did you solve it?$

Step-by-step explanation:

I don't understand how did it please explain more please.

Anon25 [30]3 years ago

3 0

Answer:

16 inches, and 10 inches tall, aka Answer D.

So because, they are asking the largest image for the photograph,

so 8 * 2 = 16

and 10 * 2 = 20 but 20 can't go into 12.

Step-by-step explanation:

I think this is right sry if its not

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vovangra [49]

Answer: (A) $A=300l-l^{2}$

(B) Length varies between 1 and 150

Step-by-step explanation: Suppose length is l and width is w.

The rectangular garden has perimeter of 600ft, which is mathematically represented as

$2l+2w=600$

Area of a rectangle is calculated as

$A=lw$

Now, we have a system of equations:

$2l+2w=600$

$A=lw$

Isolate w, so we have l:

$2w=600-2l$

w = 300 - l

Substitute in the area equation:

A = l(300 - l)

A = 300l - l²

(A) Function of area in terms of length is given by A = 300l - l²

(B) The practical domain for this function is values between 1 and 150.

(C) For the largest area, we need to determine the largest garden possible. For that, we take first derivative of the function:

A' = 300 - 2l

Find the values of l when A'=0:

300 - 2l = 0

2l = 300

l = 150

Replace l in the equation:

w = 300 - 150

w = 150

Now, calculate the largest area:

A = 150*150

A = 22500

The largest area the fence can enclose is 22500ft².

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Answer:

Step-by-step explanation:

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