Which statement can be concluded using the true statements shown? If two angles in a triangle measure 90° and x degrees, then the third angle measures (90 - x) degrees.
In triangle ABC, angle A measures 90 degrees and angle B measures 50º.
Angle C must measure 50 degrees.
Angle C must measure 40 degrees.
Angle C must measure (90 – 40) degrees.
Angle C must measure (90 - 30) degrees.

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step-by-step explanation:

d = distance between moon and sun, which in this problem is the hypotenuse of a right triangle.  

the distance y is the side opposite to angle x in the right triangle.   use the definition of the sine function from basic trigonometry.

sin(x) = y/d ⇒

d = y/sin(x)

20%

step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.