(-9) - (-2) = -7
that should be the answer you subtract
-4.3,-6/2,-2.5,5/4,4,5.33,8.2
<span>Un cubo tiene seis caras.
</span>Las dos imágenes ayudan a explicar. Uno de los cubos es un cubo transparente.<span> Por otro cubo es cubo hueco que se ha desplegado.</span> E<span>spero que esto ayude</span>
Answer:
30°, 30° and 120°
Step-by-step explanation:
Using the information given in the question.
let x be the measure of each congruent base angle , then
the third angle = 3x + 30
Sum the 3 angles and equate to 180
3x + 30 + x + x = 180, that is
5x + 30 = 180 ( subtract 30 from both sides )
5x = 150 ( divide both sides by 5 )
x = 30
Thus
The 2 congruent bas angles are each = 30°
The third angle = 3x + 30 = 3(30) + 30 = 90 + 30 = 120°