The Answer is B. 14.7 meters per second
Let , a, b and c be the length of three sides of triangle, represented in terms of vectors as 
.
Now, vector of same Magnitude acts as normal vector to each side.
So, equation of any vector p having normal q is given by
Now sum of three vector and it's normal is given as
Cross product of two identical vectors is Zero.
Since pi is equivalent to 3.14 and means 180°, therefore 1.75 which
is about half of pi should be at almost 90°. The cos of a 90° angle which is located on
the y axis should be zero, therefore cos 1.75 must be near zero. However in
this case it is near one, clearly his calculator is in degree mode that is why
he got an erroneous answer.
What Sam
can do to get the correct answer would be to convert his calculator into radian
mode or convert the given 1.75 rad into degrees:
θ = 1.75
rad (180° / π rad)
θ =
100.2676
<span>cos 100.2676
= -0.1782 which is now correct since it
is nearer to zero</span>
Answer: You just subtract them and you should get...
-8 1/6
Answer:
The height is 35 inches
Step-by-step explanation:
The area of a triangle is
A = 1/2 bh
We know the area is 245 and the base is 14
245 = 1/2 (14)*h
245 = 7h
Divide each side by 7
245/7 =7h/7
35 =h
The height is 35 inches
