-4.8f+6.4=-8.48 what's f 7.3y-5.18=-51.9 what's y
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The root is equivalent to a fractional power with that number as the denominator. Otherwise, the rules of exponents apply.
40°, 60° and 80°
sum the parts of the ratio 2 + 3 + 4 = 9
The sum of the angles in a triangle = 180°
Divide 180 by 9 to find one part of the ratio
= 20° ← 1 part of the ratio
2 parts = 2 × 20 = 40°
3 parts = 3 × 20 = 60°
4 parts = 4 × 20 = 80°
The angles in the triangle are 40°, 60° and 80°