Supplementary angles add up to 180
⇒ ∠x + ∠y = 180
∠x + ∠y = 180
∠x + 142 = 180
∠x = 180 - 142 = 38°
Answer: x = 38°
Answer:
C
Step-by-step explanation:
Since it's the product, the two numbers must be multiplied together. -3 * x will equal 21, so -3x=21. By dividing both sides by -3, we see that x=-7
Answer:
32
Step-by-step explanation:
8x6=48
2x4=8
48-16=32
Answer:
Step-by-step explanation:
By geometric mean theorem,
In a triangle ABC,


y² = 60
y = √60
y = 7.75
Similarly, 

x² = 40
x = √40
x = 6.32