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
Anit [1.1K]
3 years ago
14

Two planes A and B start from the same place and move in different directions making an angle of 50° between them the speed of p

lane A is 200 mph and the speed of plane B is 300 mph the two planes are blank miles apart after one hour?
Mathematics
1 answer:
Alika [10]3 years ago
4 0

Answer:

The distance between them is 230.65 miles

Step-by-step explanation:

Here we use the Cosine formula

a^2 = b^2 + c^2 - 2bc\ cos\ A\\\\a^2 = 200^2 + 300^2 - 2\times 200\times 300cos50^{\circ}\\\\= 40,000 + 90,000 - 120,000cos50^{\circ}\\\\= 130,000 - 120,000 \times 0.64\\\\= 130,000 - 76,800\\\\a^2= 53,200\\\\a = \sqrt{53,200} \\\\= 230.65\ miles\ per\ hour

Now the distance for one hour is

= 230.65 ÷ 1

= 230.65 miles

You might be interested in
In a talent show of singing and comedy acts, singing acts are 4.5 minutes long and comedy acts are 3.5 minutes long. The show ha
Alik [6]

Step-by-step explanation:

Let the number of singing act be x

Let the number of comedy act be y

If the total act is 14, then;

x+y = 14..... 1

If singing acts are 4.5 minutes long and comedy acts are 3.5 minutes long and the acts lasts 59 minutes, then:

4.5x + 3.5y = 59 .......... 2

Solve both equation simultaneously for x and y

x+y = 14

45x+35y = 590

.................................

x+y = 14......... *9

9x+7y = 118....... 1

...............................

9x+9y = 126

9x+7y = 118

Subtract both equations

9y-7y = 126-118

2y = 8

y = 8/2

y = 4

Substitute y = 4 into equation 1;

From 1: x+y = 14

x+4 = 14

x = 14-4

x =10

Hence there are 10 singing acts and 4 comedy acts in the show

7 0
3 years ago
Evaluate the expression 34 ÷ (14 − 5) × 2.
bonufazy [111]

Answer:

68/9

Step-by-step explanation:

34 ÷ (14 − 5) × 2

PEMDAS

Parentheses first

34 ÷ (9) × 2

We have no Exponents so

Multiply and Divide from left to right

34/9 *2

68/9

5 0
3 years ago
Read 2 more answers
Helppppppppppppp plssssssssssssssssssssssss
Goshia [24]
I would but I’m stuck on this problem too
3 0
2 years ago
Please answer asap its due today
Thepotemich [5.8K]

Answer:

rdh

Step-by-step explanation:

4 0
3 years ago
A 72,000 gallon water tower is being drained. Two thousand gallons are drained in the first hour. How many hours will it take to
ololo11 [35]

Answer:

To drain the water tower it will take 36 hours.

Step-by-step explanation:

Given:

A 72,000 water tower is being drained, and in an hour 2000 gallons are drained.

Now, to calculate the hours it would take to drain total 72,000 gallons of water, we should divide the gallons of water drained in one hour by total gallons of water in the tower.

Gallons of total water in the tower ÷ Gallons of water drained per hour

72000\div 2000

=\ 36

Therefore, to drain the water tower it will take 36 hours.

6 0
3 years ago
Other questions:
  • For every $12 he earns babysitting , he saves $5 , on saturday , rob earned $48 babysitting how much money did he save
    9·2 answers
  • Please Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    10·1 answer
  • If your machine takes up 350sq. ft. and you are asked to scale down a drawing onto a 8" x 10" piece of paper what is your percen
    9·1 answer
  • -((-7) +(4)(-12)+(-3)(11)+(-2))
    8·2 answers
  • The height of a ball above the ground as a function of time is given by the function h(t)=−32t2+8t+3 where h is the height of th
    5·1 answer
  • PLEASE PLEASE HELP??!?
    11·1 answer
  • CAN YOU PLS HELP ME WITH THIS I NEED THIS NOW!! I WILL GIVE BRAINLY TO BEST ANSWER THANK YOU!!
    9·1 answer
  • The sum of twelve and four times a number is 36. What is the number?
    15·1 answer
  • 30 % are boys<br> 77 people -&gt; only girls<br> how many people are there in total?
    6·1 answer
  • Plz Help! Will give Brainliest!!!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!