Solve (2x + y) (2x - y)
2 answers:
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Answer:
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Step-by-step explanation:
The tenths-place digits of the two numbers are the same, 4. So comparison proceeds to the hundredths place. The digit in the hundredths place of 0.4444... is 4, which is less than the digit in the hundredths place of 0.45, which is 5. Hence 4/9 < 0.45.
Answer:
The change in temperature per minute for the sample, dT/dt is 71. °C/min
Step-by-step explanation:
The given parameters of the question are;
The specific heat capacity for glass, dQ/dT = 0.18 (kcal/°C)
The heat transfer rate for 1 kg of glass at 20.0 °C, dQ/dt = 12.9 kcal/min
Given that both dQ/dT and dQ/dt are known, we have;
Therefore, we get;
For the sample, we have the change in temperature per minute, dT/dt, presented as follows;
Answer:
a) ,
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, b)
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Step-by-step explanation:
a) The equation must be rearranged into a form with one fundamental trigonometric function first:
Value of x is contained in the following sets of solutions:
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b) The equation must be simplified first:
Value of x is contained in the following sets of solutions:
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