The value missed is 1 min / 60 seconds
<h3>What is unit conversion?</h3>
Units is the conversion between different units of measurement for the same quantity, typically through multiplicative conversion factors.
To convert 720 seconds to hour,
First convert second to minutes divide by 60 and then again convert minutes to hour again divide by 60.
So,
720 seconds * ( 1 minutes / 60 seconds) * ( 1 hour / 60 minutes)
= 12 hours.
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Answer:
see explanation
Step-by-step explanation:
Given A is directly proportional to r² then the equation relating them is
A = kr² ← k is the constant of proportion
To find k use the condition when r = 5, A = 75 , then
75 = k × 5² = 25k ( divide both sides by 25 )
3 = k
A = 3r² ← equation of proportion
(a)
when r = 4, then
A = 3 × 4² = 3 × 16 = 48
(b)
when A = 147 , then
147 = 3r² ( divide both sides by 3 )
49 = r² ( take the square root of both sides )
r =
= 7
Answer:
Step-by-step explanation:
Move the decimal five places until it is after one number, and because the number got bigger, your exponent is a negative.