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JulijaS [17]
3 years ago
12

Find the value of find the value of a -7 when a equals 19 ​

Mathematics
1 answer:
Savatey [412]3 years ago
6 0

Answer:

12

Step-by-step explanation:

You have to substitute a by 17 and then just subtract.

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4 years ago
box with a square base and open top must have a volume of 4,000 cm3. Find the dimensions of the box (in cm) that minimize the am
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Answer:

Hence the width, length is 20 cm and height is 10 cm

Step-by-step explanation:

Since the box has a square base, let length = width = x. Also, let the height = y, therefore:

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SA = x² + xy + xy + xy + xy

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Taking the derivative:

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making SA' = 0:

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3 years ago
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