Final answer:
The formula to estimate the one-rep max (1RM) on the bench press is 1RM = Weight lifted × (1 + (0.033 × Number of repetitions)). This formula allows you to estimate the 1RM based on a submaximal number of repetitions. The options you provided do not contain the standard 1RM estimation method. Option C.
Step-by-step explanation:
The formula you're asking about is used for estimating the maximum amount of weight someone can lift for one repetition on the bench press, which is called the one-rep max (1RM). The correct formula is none of the options you provided; a widely used formula is:
1RM = Weight lifted × (1 + (0.033 × Number of repetitions))
This isn't listed in your options, but it's a common equation used to estimate 1RM. When applying this formula, you take the weight you can lift for a certain number of repetitions (not just one) and input those figures into the formula to get your estimated 1RM. It's important to be cautious and realistic when estimating your 1RM to prevent injury.
Regarding your multiple-choice options, none directly provides a standard method for calculating 1RM, but option a) is somewhat similar in that it involves the weight lifted and the number of repetitions, albeit not the correct calculation method.