Supplementary angles add up to 180
⇒ ∠x + ∠y = 180
∠x + ∠y = 180
∠x + 142 = 180
∠x = 180 - 142 = 38°
Answer: x = 38°
V = s²h
<span>150 = s²h </span>
<span>150 = s²(3/2)s </span>
<span>(2/3)150 = s³ </span>
<span>100 = s³ </span>
<span>s = ∛100 (approx 4.642 in) </span>
The discount of 15% is $149.25 ,you now only have to pay $845.75.
Divide 10 by -3 which equals -3.333 repeating
