Answer:
63
Step-by-step explanation:
Mean=Sum of all values/number of observation
=53+71+89+10+87/5
=310/5
=62
Answer:
4d/k or 
Step-by-step explanation:
first multiply both sides by four
you will have 4d=fk
then divide by k
4d/k=f
Answer:
Therefore
m∠Y = 41.1°
Step-by-step explanation:
Given:
In Δ YSE ,
m∠S = 70°
YE = 10 = side opposite to ∠Y
SE = 7 = side opposite to ∠S
To Find:
m∠Y = ?
Solution:
In Δ ABC, Sine Rule says
So here In Δ YSE,
substituting the given values we get

Therefore
m∠Y = 41.1°
Answer:
<em>x = 8 </em>
Step-by-step explanation:
3 ln 4 = 2 ln x ( <em>x > 0</em> )
ln
= ln
x² = 4³
x² = (2³)²
x = ± 2³
= 8
= - 8 ( strange root, does not satisfy the domain of given function )
<em>x = 8</em>