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Genrish500 [490]
3 years ago
14

Is the following sentence a statement or not a statement? open the door. it is a statement. it is not a statement. cannot tell

Mathematics
2 answers:
Dafna11 [192]3 years ago
6 0

it isn't a statement because i just got it wrong on my geometry homework lol rip me

erma4kov [3.2K]3 years ago
4 0
It is a statement. I hope this helps  
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Consider the function f(x) = x^{2/3} on the interval [-1,8].
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How do you calculate gross pay net pay and employee benefits
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A piece of cardboard measures 10 ft by 10 ft. Four equal squares of size x are removed from the corners. After removing the squa
Gnesinka [82]

Answer:

The value of x would be \frac{5}{3}

Step-by-step explanation:

Given,

The dimension of the cardboard = 10 ft by 10 ft,

∵ After removing four equal squares of size x ( in ft ) from the corners,

The dimension of the resultant box would be,

Length = ( 10 - 2x ) ft,

Width = ( 10 - 2x ) ft,

Height = x ft,

The volume of box,

V=(10-2x)\times (10 - 2x)\times x=x(10-2x)^2 = x(100 - 40x + 4x^2)=100x - 40x^2 + 4x^3

Differentiating with respect to x,

V'=100 - 80x + 12x^2

Again differentiating with respect to x,

V''=-80 + 24x

For maxima or minima,

V'=0

\implies 100 - 80x + 12x^2 = 0

\implies 3x^2 - 20x + 25=0

By quadratic formula,

x=\frac{20\pm \sqrt{20^2-4\times 3\times 25}}{6}

x=\frac{20\pm \sqrt{400 - 300}}{6}

x=\frac{20\pm \sqrt{100}}{6}

x=\frac{20\pm 10}{6}

\implies x = \frac{10}{6}=\frac{5}{3}\text{ or } x = 5

For x = 5/3, V'' = negative,

While for x = 5, V'' = Positive,

Hence, the value of x would be 5/3 ft for maximising the volume.

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3 years ago
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What is the third angle in a triangle with two angles of 60* and 45*
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The answer is 75° because all three angles of a triangle must add to 180°

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