2 years ago

Awnser this question plz

Mathematics

1 answer:

Maru [420]2 years ago

4 0

The answer should be 11

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The sum of (-9) and a number (n) is multiplied by 1/2. the result is 20. what is the number?

OLga [1]

Answer:

Step-by-step explanation:

1/2(-9+n)=20

n=40+9

n=49

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3 years ago

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a field in the shape of a trapezoid has an area of 13,687.5 square yards .the length of one base is 150yards, and the lenght of

Leviafan [203]

$A=\frac{1}{2}(b_1+b_2)h=13687.5\\\frac{1}{2}((150)+(215))h=13687.5\\(365)h=27375\\h=75$

h = 75 yards.

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3 years ago

From $16 to $4 percent

Vlad1618 [11]

Answer:

Im sorry but thats not a proper question

Step-by-step explanation:

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2 years ago

A manufacturer cuts squares from the corners of a rectangular plece of sheet metal that measures 2 inches by 7 inches (see Figur

Vladimir79 [104]

Answer:

The value of x that maximizes the volume enclosed by this box is 0.46 inches

The maximum volume is 3.02 cubic inches

Step-by-step explanation:

see the attached figure to better understand the problem

we know that

The volume of the open-topped box is equal to

$V=LWH$

where

$L=(7-2x)\ in\\W=(2-2x)\ in\\H=x\ in$

substitute

$V=(7-2x)(2-2x)x$

Convert to expanded form

$V=(7-2x)(2-2x)x\\V=(14-14x-4x+4x^{2})x\\V=14x-14x^2-4x^2+4x^{3}\\V=4x^{3}-18x^{2} +14x$

using a graphing tool

Graph the cubic equation

Remember that

The domain for x is the interval -----> (0,1)

Because

If x>1

then

the width is negative (W=2-2x)

The maximum is the point (0.46,3.02)

see the attached figure

therefore

The value of x that maximizes the volume enclosed by this box is 0.46 inches

The maximum volume is 3.02 cubic inches

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2 years ago

Which shows how to solve the equation 3/4x -6 for x in one step

Aleksandr [31]

Answer:

Step-by-step explanation:

You can multiply both sides on an equation by the reciprocal to cancel the fraction on the first side.

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1 year ago