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jeyben [28]
2 years ago
14

Let x and y be two positive numbers whose sum is 175 and (x+3)(y+4) is a maximum

Mathematics
1 answer:
Vaselesa [24]2 years ago
4 0

Answer:

Step-by-step explanation:

x+y = 175

y = 175 - x

f(x) = (x+3)(y+4)

= x(175-x) + 3(175-x) + 4x + 12

= 175x - x² + 525 - 3x + 4x + 12

= -x² +176x + 537

f'(x) = -2x + 176

maximum when x = 88

y = 175-x = 87

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Use the number line below to find a fraction that is equivalent to 1/2
Yuliya22 [10]

Answer:

4/8

Step-by-step explanation:

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(may I ask why exactly this is put as a college level problem?)

4 0
2 years ago
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LekaFEV [45]
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3 years ago
Jon, Leroy, and Simon are having a free-throw shooting contest. Each boy
Zolol [24]

Answer:

B

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If there is even number of numbers in a list, let it be n numbers, then we take the average of n/2th and n/2 + 1 th terms.

Here, all of them have 6 numbers, so 6/2 = 3  and 4th, we take average of 3rd and 4th number to find the median.

Since they are arrange in order we check each:

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Leroy = average of 6 and 8,  (6+8)/2 = 7

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8 0
3 years ago
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Delvig [45]

Answer:

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4 0
3 years ago
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