Answer:
Therefore,

Step-by-step explanation:
Consider a Δ ABC with
m∠ B= 45°
m∠ C = 90°
AB = c = 15 cm
To Find:
BC = a = y ?
Solution:
Triangle sum property:
In a Triangle sum of the measures of all the angles of a triangle is 180°.

We know in a Triangle Sine Rule Says that,
In Δ ABC,

substituting the given values we get

∴ 
Similarly for 'x',


Therefore,

Answer:
Step-by-step explanation:
88/4=22
but she has 8 left over. So that means she has 21 students.
Answer:
1/9x + 1 = 7/3
-1 -1
1/9x = 1 1/3
divide by 1/9 on both sides to isolate x
x = 12
nope i do not know the asnwer
Let y be the percentage
16 x y% = 0.2
y% = 1.25%