The half-life of helium-5 is 7.6 * 10-22 seconds, and the half-life of helium-9 is 7 * 10-21 seconds. Approximately how many times greater is the half-life of helium-9 than that of helium-5?

Alan drew several three-dimensional figures. Which of the following figures has exactly 5 faces and 5 vertices?

How do I find the answer for this equation 20x+15y = 330, when x+y = 18

During a promotional weekend, a state fair gives a free admission to every 175th person who enters the fair. on Saturday, 6,742 people were attending the fair. on Sunday, werev5,487 people attending the fair.

What is (-7+4i) + (2-5i) in standard form

If the diameter of an entire coconut is 5 inches, and the coconut meat is 1 inch thick, then there is room for approximately how much coconut milk? __ in^3 of coconut milk.

How do I find the answer to 2g = 12 pt

Last year Henry made 32 one cups serving of soup school party two times

If 45% of the class are boys what percent is girls

Without his pencil or calculator, Joey knows that 2x³+3x² - 1 = 0 has at least one real solution. How does he know?

Using the standard normal table, the probability that Seth's light bulb will last no more than 14,500 (P (z ≤ 1.25)) hours is about.