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
xxTIMURxx [149]
3 years ago
7

A policeman is standing near a highway using a radar gun to catch speeders. He aims the gun at a car that has just passed his po

sition and, when the gun is pointing at an angle of 45(degrees) to the direction of the highway, notes that the distance between the car and the gun is increasing at a rate of 100km/h. How fast is the car travelling?
...?
Mathematics
1 answer:
Serhud [2]3 years ago
4 0
The speed obtained is the y-component of the actual speed of the car. The y-component and actual speed are related by:
Vy = Vsin(∅)
100 = Vsin(45)
V = 141.4 km/h
You might be interested in
Simplify each expression.<br> 1) 6(1 - 10p)- 7
Y_Kistochka [10]

Answer:

-60p - 1

Step-by-step explanation:

Distribute the parenthesis then add like terms together.

Step 1: Distribute

6 -60p - 7

Step 2: Combine like terms

-60p - 1

4 0
3 years ago
Read 2 more answers
When the coordinates (1, 1), (4, 4), (7, 1), and (4, −2) are joined, which shape is formed? (5 points)
Citrus2011 [14]

well, if we try to plot and conect them, we will get square, so the answer is d

4 0
2 years ago
A graduated cylinder actually contains 7.5 mm of water 1/2 measures the volume of the water inside the graduated cylinder is mea
Verdich [7]

Answer:

6.667%

Step-by-step explanation:

Given that:

Actual measurement = 7.5 mm

Measured value = 7 mm

Percentage error :

Error / (Actual measurement.) * 100%

(Actual measurement - measured value)

Error = 7.5 - 7 = 0.5 mm

Percentage error = (0.5 / 7.5) * 100%

Percentage error = 0.0666666 * 100%

= 6.667%

7 0
3 years ago
Simplify
Whitepunk [10]
Here is the solved answer for this question

7 0
2 years ago
If sin 42° =2/3, then cos 48°=
borishaifa [10]
We know that:  sin Ф = cos(π/2 - Ф) ↔ sin Ф = cos(90° - Ф)
Then:

sin 42° = cos(90° - 42°) = cos 48°

IF sin 42° = 2/3, the cos 48° = 2/3
5 0
3 years ago
Read 2 more answers
Other questions:
  • ANSWER PLZ QUICK AND FAST
    11·2 answers
  • I'm confused how you split the fraction
    12·2 answers
  • A county has 90 schools. The county received 992 new computers. Are there enough computers so that each school can get 11 comput
    7·1 answer
  • EYEWITNESS TESTIMONY. A man was struck by a speeding taxi as he crossed the street. An eyewitness testified the taxi (which did
    14·1 answer
  • Which of the following graphs is described by the function given below?<br> y = 2x^2 + 8x +3
    5·2 answers
  • MICHAEL and Kevin are running. Kevin gets a 3 mile head start and runs at a rate of 5.5 miles per hour.  Michael runs at a rate
    8·1 answer
  • Can someone help solve this
    13·1 answer
  • Help me pls ........................<br> .............................
    14·1 answer
  • Please help! <br><br> thank you!
    10·1 answer
  • The side adjacent to ∠W is …
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!