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3 years ago

7

How do you write twelve and five hundred ninety-nine thousandths in standard form

1 answer:

snow_lady [41]3 years ago

5 0

The answer would be 12.599

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DIA [1.3K]

Answer:

Step-by-step explanation:

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3 years ago

Simplify the expression.<br> tan(-x) cos(-x) =

OLga [1]

The answer is -x, do you want to see work?

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3 years ago

Read 2 more answers

Most of the mass of an atom is made up of:

natali 33 [55]

Answer: The protons and neutrons.

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3 years ago

What property can I use for this question: 3x57

blondinia [14]

Answer:

<h2>====LEARN WITH REY====</h2>

What property can I use for this question: 3x57

In this property there is the property of the multiplication part

Step-by-step explanation:

If calculated, the result is

3 x 57 = 171

<h3>#Study with brainly </h3><h3># Learn with rey</h3>

<h3>Question code : 5.2.7</h3><h3>Course : Math</h3><h3>Theory : Splash</h3>

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3 years ago

A fence for a rectangular garden with one side against an existing wall is constructed by using 60 feet of fencing. What is the

Y_Kistochka [10]

Step-by-step explanation:

A fence for a rectangular garden with one side against an existing wall is constructed by using 60 feet of fencing.

Perimeter of rectangle (3 sides)= 60 feet

Let 'x' be the width of the wall

$Perimeter = 2(length)+2(width)\\60=2(length)+2x\\\\60-2x=2(length)\\\frac{60-2x}{2} =length\\Length =30-x$

Formula for the area of the rectangle is

$Area=length \cdot width\\A=length(x)$

Replace the length we got using perimeter

$A=(30-x)(x)\\A(x)= 30x-x^2$

To find out the maximum are we take derivative

$A'(x)= 30-2x\\0=30-2x\\-30=-2x\\x=15$

find out second derivative to check whether x=15 is maximum

$A''(x)=-2$

second derivative is negative

So, Maximum area at x=15

To find maximum area we plug in 15 for x in A(x)

$A(x)=30x-x^2\\A(15)=30(15)-15^2\\A(15)=225$

So, maximum area is 225 square feet

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4 years ago