Maria says if i multiply the current temperature by 4 and then subtract 40 the results is the same as 3 times the current temperature richard says the current temperature is 20 degrees is richard correct

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

What’s the volume of the triangular prism?

(co 3) the times that customers spend in a book store are normally distributed with a mean of 39.5 minutes and a standard deviation of 9.4 minutes. a random sample of 25 customers has a mean of 36.1 minutes or less. would this outcome be considered unusual, so that the store should reconsider its displays? no, the probability of this outcome at 0.035, would be considered usual, so there is no problem yes, the probability of this outcome at 0.035, would be considered unusual, so the display should be redone no the probability of this outcome at 0.359 would be considered usual, so there is no problem yes, the probability of this outcome at 0.965 would be considered unusual, so the display should be redone