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Maurinko [17]
2 years ago
6

HELP I WILL MARK YOU AS A BRAINLIEST!!!

Mathematics
1 answer:
DaniilM [7]2 years ago
3 0

Answer:

The answer is D $15.50

Hopes it Helps!

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X^2-7x-6=0<br> Use the quadratic formula to complete the equation show step by step
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Answer:

x  = 7  ± √73   / 2



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The function h is defined by h (x) = 5x - 2.
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x=2

Step-by-step explanation:

h(8)=5x-2

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1 peso = $ .075. How many pesos (whole number) do you get for $100 ?
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133

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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)

so

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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3 years ago
An employee at a gym wants to select a random sample of gym members for a survey about their exercise habits.
34kurt

Answer:

No, no, yes, no

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The first one is not random.  He is sampling only the earliest gym goers.

The second one is not random.  He is sampling only from one zip code.

The third one is random.  He is using a random number generator.

The fourth one is not random.  He is sampling only volunteers.

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