Use a calculator to find sin 42°28' rounded to the nearest ten-thousandth.
A)-0.9985
B)0.6752
C)1.0015
D)1.4811

Question

Quizplus · Accepted Answer

Using a calculator, sin 42°28' is approximately 0.6752 when rounded to the nearest ten-thousandth. Choice A is incorrect because the sine function ranges between -1 and 1, so it cannot be larger in absolute value than 1. Choice C is also incorrect because it is larger than 1, which is not possible for a sine value. Choice D is incorrect because it is much larger than 1 and is also not a possible value for a sine function. Thus, the best choice is B.

Use a Calculator to Find Sin 42°28' Rounded to the Nearest