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Dafna1 [17]
3 years ago
14

Which table represents a proportional relationship that has a constant of proportionality equal to 0.8?

Mathematics
2 answers:
dybincka [34]3 years ago
4 0

Answer:

correct answer is B

Step-by-step explanation:


Otrada [13]3 years ago
3 0

The correct answer is the second answer choice.

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A distribution x is known to have a mean value of 5 and a standard deviation of 5. what is its mean square value (i.e., the expe
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\mathbb V(X)=\mathbb E(X^2)-\mathbb E(X)^2
\implies 5^2=\mathbb E(X^2)-5^2
\implies\mathbb E(X^2)=50
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after a concert for 1,600 people, only 8 people said they would not go to see the band again. What percent of the people who wen
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D is the answer because 0.5% of 1,600 is 8 (:
3 0
3 years ago
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A farmer has 1800 m of fencing. He needs to create
NeTakaya

Answer:

67,500 m²

Step-by-step explanation:

ASSUMING the fields look like this __________________

                                                            |                    |                   |

                                                            |                    |                   | W

                                                            |_________|_________|

                                                                                L                                                            

Let L be the length of the combined field and W be the width

2L + 3W = 1800

2L = 1800 - 3W

L = 900 - 1.5W

A = LW

A = (900 - 1.5W)W

A = 900W - 1.5W²

Area will be maximized when the derivative equals zero.

dA/dW = 900 - 3W

        0 = 900 - 3W

     3W = 900

       W = 300 m

L = 900 - 1.5(300)

L = 450 m

A = LW = 450(300) = 135,000 m²

so each sub field is 135000/2 = 67,500 m²

7 0
3 years ago
Simplify 4(x^2-3y^2) - 2(3x^2-5y^2) Show your work.
MariettaO [177]
4x^2-12y^2-6x^2+10y^2
-2x^2-2y^2
i just want points so don't trust me on this
7 0
3 years ago
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Given the functions f(x) = 7x + 13 and g(x) = x^2 + 2, which of the following functions represents f[g(x)] correctly?
Paladinen [302]

Answer:

f(g(x)) = x^2 + 27.

Step-by-step explanation:

To find f(g(x))  we replace the x in  f(x) by g(x) and simplify:

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= 7x^2 + 14 + 13.

= 7x^2 + 27.

8 0
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