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Leokris [45]
3 years ago
5

How many pounds of coffee worth $9 a pound should be added to 10 pounds of coffee worth $3 a pound to get a mixture worth $7 a p

ound

Mathematics
1 answer:
Dima020 [189]3 years ago
6 0
Here is your answer......

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Please help I will give points
iVinArrow [24]

Answer:

1/32

Step-by-step explanation:

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3 years ago
2^8+6(7-1)+4 does this equal 56
sukhopar [10]

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nope

Step-by-step explanation:

it acutally equals to 292 I am sure!

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3 years ago
Two consecutive integers whose sum is -31
Gnesinka [82]

Answer:

- 15, - 16

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
the derivative of the function f is given by f'(x)=x^2cos(x^2). How many points of inflection does the graph of f have on the op
Vsevolod [243]
The point of inflection is calculated by equating the second derivative to zero and determining x from there.

f"(x) = -x²2xsinx² + cosx²(2x) = 0

2xcosx² - 2x³sinx² = 0
2x (cosx² - xsinx²) = 0

2x = 0   ⇒  x = 0
cosx² - xsinx² = 0   ⇒ x = 3.82 (if you use shift+solve in your scientific calculator)

Thus, the function only has 1 point of inflection and it is at x = 0.
5 0
3 years ago
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