Acan of mixed nuts has 5 peanuts for every 2 cashews there are 175 peanuts in the can how many cashews are there

Find dy/dx using implicit differentiation ln(20+e^xy)=y

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f