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Misha Larkins [42]
2 years ago
11

During Raul’s exercise program, he recorded how much weight he lost or gained each week. After 5 weeks, Raul had collected the d

ata shown in the chart. He thought, “I can use the Inverse Property and the Identity Property to help me find out how much my weight has changed.”
Why is Raul’s reasoning incorrect?
A. The total of Raul’s numbers is not 0.
B. Raul’s list of numbers does not include 0.
C. Raul’s list of numbers includes opposites.
D. Raul cannot add any of the numbers in his list to get 0.
Mathematics
1 answer:
Sveta_85 [38]2 years ago
7 0

Answer:

The answer should be A or B

Step-by-step explanation:

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2 feet

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If C ( x ) = 11000 + 500 x − 3.6 x 2 + 0.004 x 3 is the cost function and p ( x ) = 1700 − 9 x is the demand function, find the
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Answer:

Step-by-step explanation:

The cost function = C(x)

The demand function = P(x)

C(x) = 11000 + 500x - 3.6x^2 + + 0.004x^3

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Differentiate C(x) with respect to x

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C'(x) is the marginal cost

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R(x) = x( 1700 -9x)

= 1700x - 9x^2

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R'(x) is the marginal revenue

Profit is maximized when R'(x) = C'(x)

1700 - 18x = 500 - 7.2x + 0.012x^2

Collect like terms

0 = 500 - 1700 - 7.2x +18x +0.012x^2

0 = -1200 + 10.8x +0.012x^2

0 = 0.012x^2 + 10.8x - 1200

Using x=( -b +_ √b^2 - 4ac) /2a

a = 0.012 , b= 10.8 , c= -1200

x= (-10.8 +_ √(10.8^2) - 4*0.012*(-1200)) /2*0.012

= ( -10.8 +_√116.64 + 57.6) / 0.024

= (-10.8 +_ √174.24) / 0.024

= (-10.8 +_13.2) / 0.024

= (-10.8+13.2)/0.024 or (-10.8 - 13.2)/0.024

= 2.4/0.024 or -24/0.024

x= 100 or -1000

Since our profit cannot be negative, the profit = $100

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3 years ago
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2x + 1 = 9<br> is that the answer ?
Ronch [10]

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yes

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because 9-1=8/2 equals 4 so2x4+1=9

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2 years ago
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