Question

the measure of angle bac can be calculated using the equation $sin^{-1}left(\frac{3.1}{4.5}
ight)=x$.
not drawn to scale
what is the measure of angle bac? round to the nearest whole degree.
$0^circ$
$1^circ$
$44^circ$
$48^circ$

Explanation:

Step1: Calculate the fraction

$\frac{3.1}{4.5} \approx 0.6889$

Step2: Find inverse sine of the value

$x = \sin^{-1}(0.6889)$

Step3: Round to nearest whole degree

Using a calculator, $\sin^{-1}(0.6889) \approx 44^\circ$

Answer:

44°