In this exercise, we need to find the angle ∠EDH, that is, according to the figure above, this angle is:
∠EDH = (5x)°
So, our goal is to find the value of x. By taking a look in the figure above, this equation is true:
(5x)° + (4x)° = 90°
Therefore:
(9x)° = 90° ∴ x = 10
So:
∠EDH = (5x)° ∴ ∠EDH = [(5)(10)]° ∴ ∠EDH = 50°
Finally, the right answer is 50°
Where is x and y ? i don’t see it in the equation
Answer: For

Nick does not has enough money to follow this recommendation.
Step-by-step explanation:
Given: A self-service car wash charges $4 for the initial 5 minutes plus an additional $0.75 for each minute after that.
Let y be the cost for car wash for m minutes then
such that at m= 5 , y=4 which is the cost for car wash (dollars) for first 5 minutes.
Also, A car enthusiast magazine recommends spending at least 15 minutes to properly wash a car.
For

But Nick has $10 which is less than $11.5, so he does not has enough money to follow this recommendation.
Use a calculator and get 4.72
Answer:
-4 +4 =0
Step-by-step explanation:
The sum of a number and its' additive inverse is 0
The additive inverse of -4 is 4
-4 +4 =0