There are 172 south american animals in the springdale zoo. that is 45 more than half the number of african animals in the zoo. write an equation you could use to find n, the number of african animals in the zoo

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

The trigonometric ratios sine and secant are reciprocals of each other

Me with geometry ! in this figure, bc is a perpendicular bisects of kj. dm is the angle bisects of bdj. what is the measure of bdm? •60° •90° •30° •45°