A hole needs to be at least 40 feet below ground level. This means it needs to be more than 2 1/2 times it’s current depth. This depth is represented by the inequality 2 1/2d < -40, where d is the current depth of the hole. Select from the drop-down to correctly interpret the solution of this inequality.

The current depth of the hole is feet below ground level.

A.) The current depth of the hole is at most 16 feet below ground

B.) The current depth of the hole is deeper than 16 feet below ground

C.) The current depth of the hole is less than 16 feet below ground level

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

Christine wong has asked dave and mike to her move into a new apartment on sunday morning. she has asked them both, in case one of them does not show up. from past experience, christine knows that there is a 40% chance that dave will not show up and a 30% chance that mik a. what is the probability that both dave and mike will show up? (round your answer to 2 decimal places.) b. what is the probability that at least one of them will show up? c. what is the probability that neither dave nor mike will show up? (round your answer to 2 decimal places.)e will not show up. dave and mike do not know each other and their decisions can be assumed to be independent.

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?