Answer:Rosk Construction has the best work output.
Step-by-step explanation:
1. The unit rate for Rosk Construction is 62
(because a=62w)
2. The unit rate for Fosbert’s Construction is
65 (because 130/2=65; 260/4=65; &
390/6=65. Therefore the unit rate is 65).
3. The unit rate for Durable B Construction is
63 (because 63/1=63; 126/2=63; &
189/3=63. Therefore the unit rate is 63).
Answer:
100
Step-by-step explanation:
you have to add each number on each side
Answer:
1107
Step-by-step explanation:
72+ (33+12)23
= 72 + (45)23
=72+ 1035
=1107
Since
∠CPD = x
and segment PN is the angle bisector of this angle, therefore segment PN
equally divides ∠CPD into two angles. Which means that:
∠CPN = ∠NPD = x / 2
Further,
segment PN is also the perpendicular bisector of AB which further means that
the intersection formed by PN and AB creates a right angle (90°). Therefore:
∠NPD + ∠DPB = 90°
x/2
+ ∠DPB =
90°
∠DPB =
90 – x/2
Therefore:
sin∠<span>DPB = sin(90 – x/2) which is not in the choices</span>
However we know that the
relationship of sin and cos is:
sin(π/2
- θ) = cos θ
Where,
π/2
= 90
θ =
x/2
Therefore:
sin(90 – x/2) = cos(x/2)
Answer:
<span>cos(x/2)</span>
