genny42
26.06.2019 •
Mathematics
In right triangle abc, where c is the right angle : b = 12 and b = 33°. find a, a, and c to the nearest tenth.
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Ответ:
A= 57° , a= 7.79 and c = 14.30
Step-by-step explanation:
In a given right triangle,
We have, b =12 ,B =33° and C =90°
We can find Angle A.
Angle sum property of triangle:
i.e A + B + C = 180°
A + 33° + 90° = 180°
A = 57°
Next, by using trigonometry
tanB = Perpendicular /Base = a /b
Here B =33° , a = ? , b = 12
So, tan 33° = a/12
0.6494 = a/12
a = 7.79
So we got a and b. By using Pythagoras theorem we determine c.
c^2 = a^2 + b^2
c^2 = 7.79^2 + 12^2
c = √(2046841) = 14.30
Ответ:
The right solution is "$1,920,000".
Step-by-step explanation:
Given:
Project cost,
= $1200000
Dr. Leonard sells by
= 60%,
The mark up value will be:
=
= ($)
hence,
The selling price he should put with the bank will be:
=
=
= ($)