Solve the problem.The half-life of radium is 1690 years. If 150 grams is present now, how long (to the nearest year) till only 100 grams are present?
Fill in the blank(s) with the appropriate word(s).
989 years
Mathematics
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Insert four geometric means between 4 and 128.
A. 9, 15, 33, 63 B. 10, 14, 34, 62 C. 8, 16, 32, 64 D. 8, 15, 33, 64
Mathematics
Translate the sentence to an algebraic inequality.A number is greater than 2.
A. x ? 2 B. x > 2 C. x ? 2 D. x < 2
Mathematics
Write the number in standard form.Forty-eight thousand, seventeen
A. 47,180 B. 48,017 C. 4,817 D. 48,170
Mathematics
Simplify the radical.
A. |x + 2| B. x + 2 C. -x - 2 D. -|x + 2|
Mathematics