Aright triangle includes one angle that measures 30º. what is the measure of the third angle? a. 30º b. 90º c. 60º d. 130º

C. 60º

Step-by-step explanation:

A triangle is called a right triangle when one of it's angle measures 90°.

We have been given the second angle as 30°.

The angles in a triangle add up to 180°.

∴ leting the third angle to be X;

X + 30° + 90° = 180°

X + 120° = 180°

X = 180° - 120°

   = 60°

2^y = ln 5, or   y(ln 2) = ln 5.   solving for y,   y = (ln 5) / (ln 2).   y=5

step-by-step explanation:

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.