Answer: 84
Step-by-step explanation:
(16-4÷2)2×3
= (16 - (4/2)) * 2 * 3
= (16 - 2) * 6
= 14 * 6
= 84
D makes sense because it's the only option that is using a legitimate form of data collection.
Answer:
D: 55.5d + 90
Step-by-step explanation:
Answer:
=6√3 the third option.
Step-by-step explanation:
We can use the Pythagoras theorem to find the value of y. We need two equations that include y.
a²+b²=c²
c=9+3=12
x²+y²=12²
x²=144 - y².........i (This is the first equation)
We can also express it in another way but let us find the perpendicular dropped to c.
perpendicular²= x²-3²=x²-9 according to the Pythagoras theorem.
y²=(x²-9)+9²
y²=x²+72
x²=y²-72....ii( this is the second equation
Let us equate the two.
y²-72=144-y²
2y²=144+72
2y²=216
y²=108
y=√108
In Surd form √108=√(36×3)=6√3
y=6√3
The correct answer to the first question is: A'(-5, 6)
The second answer is un-answerable, because the pictures you have provided do not display triangles.
