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
faust18 [17]
3 years ago
5

a ferry shuttles people from one side of a river to the other. the speed of the ferry is still water is 25 mi/h. the river flows

directly north at 9 mi/h. if the ferry heads directly west, what are the ferrys resultant speed and direction
Mathematics
1 answer:
Anarel [89]3 years ago
7 0

Answer:

The Terry's resultant speed is 27mi/h

Direction of ferry=20°

Step-by-step explanation:

(-25,0) + ( 0, 9)= (-25, -9) is the vector representing the movement of the ferry

Speed of ferry = sqrt[(-25)^2 + (-9)^2]

Speed= sqrt (-625 + (-81))

Speed= sqrt(-706)

Speed=26.57mi/h

Nearest tenth,speed= 27mi/h

Tanz° = (-9/-25)

Tanz°= 0.36

Z°= tan^-1 0.36

Z= 19.80°

Nearest tenth,z=20°

You might be interested in
Penny has 139 postcards in her collection. Abe has 48 postcards in his collection. Then Abe gives his collection away. He divide
erik [133]

Answer:

145

Step-by-step explanation:

Divide 48 by 7 = 6≅. then add 6 to 139. 145

5 0
3 years ago
Eight times the sum of a number and 4 equals 3
BigorU [14]

The algebraic expression is:8(x+4)=3

And Value of x is: x=\frac{-21}{8}

Step-by-step explanation:

We need to write the expression of the statement:

Eight times the sum of a number and 4 equals 3

Let the number = x

The expression will be:

8(x+4)=3

Solving the expression to find value of x:

8(x+4)=3\\8x+24=3\\Adding\,\,-24\,\,on\,\,both\,\,sides:\\8x+24-24=3-24\\8x=-21\\x=\frac{-21}{8}

So, The algebraic expression is:8(x+4)=3

And Value of x is: x=\frac{-21}{8}

Keywords: Algebraic Expression

Learn more about Algebraic Expression at:

  • brainly.com/question/1600376
  • brainly.com/question/1617787
  • brainly.com/question/9720317

#learnwithBrainly

3 0
3 years ago
Sally bought some candy bars for $1.25 each and some sodas for $1.49 each. If she bought a total of 38 items and spent $50.38 ho
hammer [34]

Answer:

26 candy bars and 12 sodas

Step-by-step explanation:

This problem can be solved by a simple system of equations

I am going to call x the number of candy bars that Sally bought and y the number of sodas that Sally bought.

The fact that she bought 38 itens means the x + y = 38.

She spent $50.38. The value she spent is the sum of the number of candy bars multplied by the value of the candy bar and the number of sodas multiplied by value of a soda. So 1.25x + 1.49y = 50.38

So we have to solve the following system:

1)x + y = 38

2)1.25x + 1.49y = 50.38

From 1), we have that x = 38 - y. I am going to replace it in 2)

1.25(38-y) + 1.49y = 50.38

-1.25y + 1.49y = 50.38 - 47.5

0.24y = 2.88

y = 12.

Sally bought 12 sodas.

In 1: x = 38-y = 38-12 = 26

Sally bourght 26 candy bars

6 0
3 years ago
Read 2 more answers
Everyone friend me Plz! Why not?<br> Btw What is 3{(x-5)+4}-8=31?
Lesechka [4]
Think about it think 6x5 or higher then you will get you answer by doing that
6 0
3 years ago
Determine the derivative of y=x^2+xy
ratelena [41]
Hey I just started this test to that's funny lol
7 0
3 years ago
Other questions:
  • The length of a rectangle is 5 feet more than twice the width. The perimeter is 28 feet. Find the length and width
    5·1 answer
  • Which of these tables represents a function?
    13·1 answer
  • Determine the seating capacity of an auditorium with 35 rows of seats if there are 20 seats in the first row, 23 seats in the se
    12·1 answer
  • PLEASE HELP WILL REWARD BRAINLIEST
    14·1 answer
  • What is the value of x ?
    11·2 answers
  • The diameter of one side of a 10-foot log is approximately 13 inches. The diameter of the other side of the log is approximately
    9·1 answer
  • HELP PLEASE!!!!Which of the following is a polynomial with roots:
    8·1 answer
  • BRALIEST IF CORRECT :))
    12·2 answers
  • Solve -7 &lt; 3x + 2 &lt; 14
    5·2 answers
  • write a function in terms of t that represents the situation. sales of 10000 decreases by 65% each year.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!