1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zysi [14]
3 years ago
13

A military plane is flying directly toward an air traffic control tower, maintaining an altitude of 9 miles above the tower. The

radar detects that the distance between the plane and the tower is 15 miles and that it is decreasing at a rate of 750mph. What is the ground speed of the plane
Mathematics
1 answer:
lozanna [386]3 years ago
6 0

Answer:

-937.5 mph

Step-by-step explanation:

Assuming this takes place in a right angled triangle. With the hypotenuse side being, d, 15 miles, the opposite side being 9 miles and the adjacent being an unknown, x.

Using Pythagoras theorem, we know that

x² = 15² - 9²

x² = 225 - 81

x² = 144

x = √144

x = 12 miles.

Again, we should know that

2xx' = 2dd', this means that

xx' = dd'

From the question, we're told that it's decreasing at d' = 750 mph. On substituting, we have

x' = dd' / x

x' = (15 * -750) / 12

x' = -11250 / 12

x' = -937.5 mile per hour

The ground speed of the plane is also decreasing at 937.5 mile per hour

You might be interested in
What’s the value of x
kozerog [31]
Answer should be:

X=9.
6 0
3 years ago
Read 2 more answers
Please Help!!!
marishachu [46]
The second one, and you as well ☺️
8 0
3 years ago
Write an equation of the line that passes through the point (1,3) and has a slope of -2
jek_recluse [69]

Answer:

y= -2x+1

Step-by-step explanation:

y=mx+b

y= -2x +b

3= -2(1) +b

3= -2 +b

b=1

y= -2x+1

4 0
2 years ago
Help. and please show workout so I can know how to understand it (and both questions)
Arlecino [84]
Just remove the parenthesis since you are adding them and combine like terms
x+5+2x+3
3x+8
8 0
3 years ago
I NEED HELP!!! PLZ HELP!!!!!!!!!
Digiron [165]

Answer:

30.06

Step-by-step explanation:

The question states WHAT DID THEY PAY BEFORE INSTALATION CHARGES.

So 30.06$

588.34-555.28=30.06

3 0
3 years ago
Other questions:
  • Laminate buys 12 packs of juice and pays a total of $48. Use a ratio table to determine how much she will pay to buy 8 more pack
    12·1 answer
  • Vijay has an annual salary of $47,000, and his company pays him twice a month. What is the gross income on each paycheck that Vi
    14·1 answer
  • What would the total bill be of a painting that costs $44.80 with a tax rate of 6%
    5·2 answers
  • PLZ HELP FAST!!! WILL GIVE BRAINLIEST!!! The linear function graphed below represents Tim’s age in the years since he was marrie
    12·2 answers
  • The sum of two consecutive numbers is 157. This equation, where n is the first number, represents the situation:
    8·2 answers
  • Find the quotient 78.5 divided by 10 to the third power
    6·2 answers
  • Which point is the vertex for the graph of y = |x| + 2?
    13·1 answer
  • A circular garden at the local park has a circumference of ​942 feet. What is the radius of the garden in feet? (use 3.14 to app
    12·2 answers
  • Find -3/7 divided by -15/1
    8·1 answer
  • This is the last question on my DBA! Please help!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!