Answer:

-3/-1
Step-by-step explanation:
804 miles/12 hours = 67 miles
Which means that Ivan drove 67 miles per hour
67 miles*9 hours = 603 miles
Which means that in 9 hours Ivan can drive 603 miles if he drives at a constant speed of 67 miles per hour.
A shadow measures 88 m: d = 88 m.
The angle : α = 32°
We will use trigonometry:
h / d = tan α
h / 88 m = tan 32°
h / 88 m = 0.62489
h = 88 m * 0.62489
h = 54.9885 m ≈ 55 m
Answer: The approximate height of a building is 55 meters.
Answer:
17
Step-by-step explanation:
What we have to realize is that RS + ST = RT. Since we know the value of all, let's substitute inside the equation.

Now let's try and solve for x by isolating the variable on one side.
Combine like terms:

Subtract 18 from both sides:

Divide both sides by 7:

Now that we know the value of x, we can substitute it back into the equation for RS,
.

Hope this helped!