Answer: 41 degrees
Step-by-step explanation:
measure of angles in a triangle is 180 degrees
So
87 + 52 + ? = 180
139 + ? = 180
? = 41
Answer:
y-2=-1/2(x+2)
Step-by-step explanation:
y-y1=m(x-x1)
As, v=√2as
Squaring both sides,
v²=2as
∴ s= v²/2a
Answer:
Mean = 1.9
Standard deviation = 0.6
Step-by-step explanation:
The Mean is calculate by the formula:

⇒ 
Thus Mean to the nearest tenth is 1.9
Standard Deviation is the square root of sum of square of the distance of observation from the mean.
where,
is mean of the distribution.
Putting all values in the formula, We get
Standard Deviation = 0.597 ≈ 0.6
Answer:
it's -4 i don't know what you mean by regrouping, sorry
Step-by-step explanation: