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
NikAS [45]
3 years ago
14

A transit company operates commuter trains to help people get to the city each day. Each train travels on a straight route to an

d from the farthest station, stopping at other stations along the route. The graph shows the distance y miles the train is from the station after x minutes.
Mathematics
1 answer:
xxTIMURxx [149]3 years ago
8 0

Answer: i just need pionts

Step-by-step explanation:

You might be interested in
A factory that manufactures screws is performing a quality control experiment. Each object should have a length of no more than
-BARSIC- [3]

Answer:

a) Null Hypothesis: length of each screw is less than 14 centimeters

b) Alternate Hypothesis: length of each screw is equal to or greater than 14 centimeters

Step-by-step explanation:

Complete question

A factory that manufactures screws is performing a quality control experiment. Each object should have a length of no more than 14 centimeters. The factory believes that the length of the screws exceeds this value and measures the length of screws. The sample mean screw length was centimeters. The population standard deviation is known to be centimeters.

1. What is the null hypothesis?

2. What is the alternative hypothesis?

Solution :

The null hypothesis is basically the problem statement that needs to be tested.

Alternate hypothesis is opposite of that of null hypothesis

a) Null Hypothesis: length of each screw is less than 14 centimeters

b) Alternate Hypothesis: length of each screw is equal to or greater than 14 centimeters

7 0
3 years ago
Describe the angle as it relates to the digram <br> ;) :)
11Alexandr11 [23.1K]
The answer elevation /_angle B /_ V
6 0
3 years ago
Read 2 more answers
42.5% of 59.2 is what number?
Leokris [45]
The answer is 25.16
Hope this helps.
Please mark as Brainliest:)

4 0
3 years ago
Greg thinks of a number, multiplies it by 3, subtracts 5 and then multiplies by 2. His answer is 26. What number did Greg think
soldi70 [24.7K]

Answer:

x

3x

3x-5

2(3x-5)

so

2(3x-5)=26

3x-5=13

3x=18

x=6

he thought of 6

8 0
1 year ago
Use scalar projection to show that the distance from a point P1(x1,y1) to the line ax+by+c=0 is |ax1+by1+c|/underroot(a^2 +b^2)
Elina [12.6K]

Answer:

d = 13 / 5 units          

Step-by-step explanation:

Given:

- Point P = (-2 , 3 )

- line : 3x - 4y + 5 = 0

Find:

- Use projection to show the given formula

- use the formula to find the distance from given point and line.

Solution:

- Let line L be defined as:

                                     a*x + b*y + c = 0

- Choose A as fixed point on the line L whose coordinates are ( m , k ).

- Now the coordinates of any point (x , y ) can be given by the line L:

                                    a*( x - m ) + b*( y - k ) + c = 0

- We did that by subtracting the coordinates (x,y) from (m,k).

- The above line can represented by dot product of constants (a , b ) to vector coordinates between points (x,y) to (m,k):

                                   ( a , b ) . ( x - m , y - k) = 0

- For above expression to be true i.e the dot product of two vectors is only zero when the vectors are orthogonal. So vector (a , b ) is always perpendicular to every vector in direction of line L

- The vector:

                                         v =  ( x - m , y - k)

- It may represent the line connecting the points (x_1 , y_1) and (m, k).

Then the distance d from the point P_1: (x_1, y_1) to the line L is given by the magnitude of the scalar projection of v onto a, because the latter is the length of the side of a right  triangle with two of the vertices being P_1 and

( m , k), and the other vertex lying on L So:

                                      d = | component v along x |

                                      d =  | v . ( a , b ) | / | (a , b ) |

                                      d = | (x_1 - m , y_1 - k ) . ( a , b)| / sqrt(a^2 + b^2)

                                      d = | ax_1 + by_1 - (a*m + b*k) | / sqrt(a^2 + b^2)

Where point A (m,k) lies on line hence;

                                      a*m + b*k + c = 0

                                      c = - (a*m + b*k)

Hence,

                                      d = | ax_1 + by_1 + c | / sqrt(a^2 + b^2)

- Given point P (-2,3) and line L : 3x - 4y + 5 = 0

where,

                                    (x_1 , y_1) = (-2 , 3 )

                                     (a , b) = ( 3 , -4 )

                                            c = 5

-Evaluate:

                                    d = | 3*(-2) + -4*3 + 5 | / sqrt(3^2 + 4^2)

                                    d = | - 13 | / 5

                                    d = 13 / 5 units                                    

                               

6 0
3 years ago
Other questions:
  • Help someone please?
    9·1 answer
  • Karla has spent $39 on food. She bought milk, cheese, and meat. The milk cost half as much as the cheese and the meat cost 4 tim
    15·1 answer
  • Please answer this correctly
    14·1 answer
  • Solve the equation for x.
    12·2 answers
  • What is the value of the expression below when z=6?<br><br> Z to the 2nd power +3z -3
    6·1 answer
  • Factor the expression using GCF the (greatest common factor)
    7·1 answer
  • 3/72 need help in this division problem​
    13·1 answer
  • Can someone please help me with this?
    7·1 answer
  • 1-74. Read this lesson's Math Notes box about scaling axes. Then, on your paper, copy the incomplete
    11·1 answer
  • Work out the perimeter of the shaded shape.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!