exam Maths Puzzle Numerical Ability

Solve ∆ABC if C=90 degrees, B=20 degrees, and b=10. Round measures of sides to the nearest tenth and measures of angles to the nearest degree.

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A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it.

Thanks Which number does not make the number sentence 26 + y> 30 true?

A. 10 B. 4 c. 7 d. 100