Can I ask u to repeat your question you need answered.
Answer:
17) h=I(1-cosθ); 18) h=1.404.
Step-by-step explanation:
17) h=I-BC;
In ΔABC: m(∠C)=90°, m(∠B)=θ, AB=I, then BC=AB*cos(∠B); ⇒ BC=Icosθ;
Then h=I-Icosθ or h=<u>I(1-cosθ)</u>.
18) if I=6 and θ=40°, then h=6(1-cos40°)≈6*(1-0.766)=<u>1.404</u>, where cos40°≈0.766.
For more details see the attachment.
Answer:
The difference of two numbers is 5:
x - y = 5
Their quotient is 2:
x/y = 2
Since x/y = 2 then x = 2y
Substituting into x-y=5 gives:
2y - y = 5
y = 5
x = 2y = 2(5) = 10
Your numbers are 10 and 5
Hope it helps
Step-by-step explanation:
So first thing you need to understand is that ABC and AFE are congruent triangles. This means we can find the other angles, based on ABC:
Angle FAE = 26.56505118 degrees
Angle AEF = 63.43494882 degrees
Angles ECD and DEC are both 45 degrees
Now, we can find the angles in ACE:
AEC = 71.56505118 degrees
ECA = 71.56505118 degrees
CAE = 36.86989764 degrees