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
ki77a [65]
3 years ago
15

two airplanes are approaching an airport to land. the pilot of plane a records and angle of decent of 15 degrees. a person near

the runwat finds the angle of elevation to plane b to be 15 degrees as well. are the two planes decending at the same angle?
Mathematics
1 answer:
Radda [10]3 years ago
6 0

<u>Answer:</u>

Yes,two planes descending at the same angle

<u>Explanation:</u>

Given the angle of deviation as seen by the pilot is equal to 15 degrees,

i.e the angle made by the line of sight with the ground is 15 degrees also the angle of elevation from a person at ground to the other plane is given to be equal to 15 degrees

which means the angle made by line of sight to plane and ground is equal to 15 degrees hence both of these situations refer to the same angle at a point and hence both planes are descending at the same angle.

You might be interested in
What is the length of line segment XZ
algol13
8 units that Is the answer
4 0
3 years ago
Read 2 more answers
A student rolls a number cube. What is the probability the student rolled a 5, given that the student rolled a prime number?
andre [41]
P(5 | prime number) = 1/3
8 0
3 years ago
Determine the equation for the quadratic relationship graphed below.
kap26 [50]

Answer:

\large \boxed{\sf \bf \ \ y=3x^2-6x-1 \ \ }

Step-by-step explanation:

Hello, please consider the following.

We can read from the graph that the vertex is (1,-4) , it means that the equation is, a being a real number.

y=a(x-1)^2-4

And the point (0,-1) is on the graph so we can write.

a\cdot 1^2-4=-1 \\\\a-4+4=-1+4\\\\a = 3

So the equation is.

y=3(x-1)^2-4\\\\=3(x^2-2x+1)-4\\\\=3x^2-6x+3-4\\\\=3x^2-6x-1\\\\=\boxed{3}x^2\boxed{-6}x\boxed{-1}

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

6 0
3 years ago
How many cars are sold in a typical week at the dealership?
nirvana33 [79]
Maybe around 10 this is a tricky question.


Different dealerships sell different amounts
6 0
3 years ago
Part A: What is the mean and median amount of rainfall of this data set?
vodomira [7]

Answer:

Part A:  2.mean=6.42,median=7

Part B: 2.median

Part C: 2.No it is skewed left and unimodal

Step-by-step explanation:

Part A:

Finding the mean is pretty easy, you just need to divide the sum of the data values with the number of data. There are 19 data count which values spread from 2 to 10. The calculation for the mean will be:

mean = (2*1 + 3*1 + 4*2 + 5*2 + 6*3 + 7 *3 + 8 *4 + 9*2 + 10*1)/ 19

mean = 6.42105

To find the median, you have to put the data into a sequence from lowest to highest value. Then you have to find the spot where there is the same number of data above and below that spot. There are 19 data counts, so the median will be the (19+1)/2= 10th data from the highest or lowest.

The data should look like this:

2, 3, 4, 4, 5, 5, 6, 6, 6,            7,           7, 7, 8, 8, 8, 8, 9, 9, 10

The median is 7

Part B:

To choose which central tendency best used for data, you have to find how the distribution of data. Mean is easily influenced by outlier so it's not good for skewed data. Median is a better choice for skewed data.

The mode used for a categorical or discreet type of value. The data of rainfall using numerical value, so the mode is not good.

Since the data is skewed to the left (explanation on part C) then median will be best choice to represent the data.

Part C:

The normal distribution has one peak and symmetrical. Data with one peak also called unimodal. In this data, there is only one peak at 8 so it's unimodal.  

A data called symmetrical if it spread equally to the right and left. The data here is not symmetrical, it has more value on the left of 8 compared to the right of it. The lowest value on the left is 2 which is 6 value lower than the peak, while the highest value is 10 which 2 values higher than the peak. From this observation, we can say that the data is

1. skewed left

2. unimodal

Since the data skewed, its not a normal distribution.

7 0
3 years ago
Other questions:
  • Help........ this is hard just explain what to do
    12·1 answer
  • What is the value of y, and quick explanation please!
    10·2 answers
  • A sphere has a radius of 15 m. If the radius is divided by 5, what is the effect on the surface area?
    5·1 answer
  • Whats 2 1/3 - 1 3/4 in simplest form
    5·1 answer
  • Math help please show work I will make brainlist if correct thanks
    5·1 answer
  • What is the value of the<br> underlined digit?<br> 56
    13·1 answer
  • What 3D figure will create a rectangle if you take a cross-section perpendicular to the base? A. Cylinder B. Rectangular Pyramid
    11·1 answer
  • How can 6.38 x 0.08 = 6.9768? (Show your steps please!)
    14·1 answer
  • PLEASE HELP!!!! I WILL GIVE BRAINLIEST TO PEOPLE THAT CAN HELP ME ANSWER THIS
    9·1 answer
  • Which integer in the set has the smallest value (-25, -5, -13, 3)?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!