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Dimas [21]
3 years ago
12

Barry asked 40 random students at his school to name their favorite ice cream flavor. Of the 40 students he asked, 25 of them pr

eferred chocolate. Based on Barry's results, how many of the 1,200 students in the school most likely prefer chocolate ice cream?
(1 point)
• 200
• 450
• 750
• 1,000
my answer is C check my work
Mathematics
1 answer:
bagirrra123 [75]3 years ago
3 0

Answer:

750

Step-by-step explanation:

62.5% choose chocolate

1200 x 62.5% of is 750

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I need help to answer A and B and C I got kind of confused <br>​
liubo4ka [24]

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1. ) Consider the function f(x)=5−7x2,−5≤x≤1
Marat540 [252]
1.) The interval of the value of x is from -5 to 1, inclusive. Remember that what is asked is the absolute value, thus the sign does not matter even if you have to subtract x from 5. Thus, the maximum value would be obtained if the x is smaller, which is 1. The minimum value is obtained when x=-5.

Absolute maximum value: x = - 5
f(-5) = ║5 - 7(-5)^2║ = ║-170║=170


Absolute minimum value: x = 1
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2.) The Mean Value Theorem (MVT) applies to functions that are continuous and differentiable on the closed and open interval of a to b, respectively. Since the function is a quadratic function, MVT can be applied. Then, this means that there is a value of c which is between a and b. This could be determined using this formula according to MVT:

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The differentiated form would be f'(x) = -2x. Then,

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c=- \frac{1}{2}

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The length of the missing side
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Answer:

There is no image or context

Step-by-step explanation:

Sorry, message me back. I am sure I can asnwer your question.

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Answer:

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Step-by-step explanation:

the expression is equivalent

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