Answer:
0.4 or 4/10 as a fraction
Step-by-step explanation:
Given:
The expression is:

To find:
The difference.
Solution:
We have,

It can be rewritten as:


Taking LCM, we get




Therefore, the value of the difference is
.
Answer:
16.24°
Step-by-step explanation:
Are you trying to find the angle of depression from the camera to the cashier?
Assume that the camera is 2.24 m high and the cashier is 7.69 m away.
1. Angle of elevation from cashier
tanθ = 2.24/7.69 = 0.2913
θ = arctan(0.2913) = 16.24°
2. Angle of depression from camera
∠ of depression = ∠ of elevation = 16.24°
Standard form would be
.407600105028
Hope this helps
Let's solve your system by substitution.
a=−2;b=−3
Step: Solve a=−2for a:
a=−2
Step: Substitute−2for a in b=−3:
b=−3
b=−3
Answer:
a=−2 and b=−3