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
bezimeni [28]
3 years ago
15

How do I find what AC is?

Mathematics
1 answer:
Snezhnost [94]3 years ago
6 0

Answer:

sqrt(882) or 29.698

Step-by-step explanation:

AD^2 + DC^2 = AC^2

sqrt(21^2+21^2) = 29.698

You might be interested in
Flying to England with a tailwind a plane averaged 158km/h one the return trip the plane only averaged 112 km/h while flying bac
lyudmila [28]

Answer: the speed of the plane in still air is 135 km/h

the speed of the wind is 23 km/h

Step-by-step explanation:

Let x represent the speed of the plane in still air.

Let y represent the speed of the wind.

Flying to England with a tailwind a plane averaged 158km/h. This means that the total speed of the plane is (x + y) km/h. Therefore,

x + y = 158 - - - - - - - - - - - - - -1

On the return trip, the plane only averaged 112 km/h while flying back in the same wind. This means that the total speed of the plane is (x - y) km/h. Therefore,

x - y = 112 - - - - - - - - - - - - - -2

Adding equation 1 to equation 2, it becomes

2x = 270

x = 270/2 = 135 km/h

Substituting x = 135 into equation 2, it becomes

135 - y = 112

y = 135 - 112

y = 23 km/h

7 0
3 years ago
Find the least length of a rope which can be cut into whole number of pieces of lengths 45cm, 75cm and 81 cm
choli [55]
The least is 45 bc it is less than the other 2
5 0
2 years ago
Which of the following statistics would provide a good comparison between data sets?
White raven [17]

Answer:

ans is mean

Step-by-step explanation:

pls make me brainlest pls i beg you

8 0
2 years ago
Please help im stuck!
Nutka1998 [239]

Answer:

k

Step-by-step explanation:

k

4 0
2 years ago
If each interior angle of a regular polygon measures ​120 , how many sides does the polygon​ have?
KatRina [158]

Answer:

the ans is 6 sides i guess

3 0
2 years ago
Read 2 more answers
Other questions:
  • Solve: 2x + 27 = 3x - 9
    15·1 answer
  • Find the sum of the polynomials: (x2 + 4x + 5) + (3x – 3)
    15·2 answers
  • Solve for n<br> 4n + 12=36
    5·1 answer
  • Convert this number to a percent. .0089 = _____
    14·2 answers
  • In the Volume of Cylinders, Cones and Spheres Section, if a cylinder has a radius of 3 and a height of 8, check all that apply.
    14·1 answer
  • Which two statements are true about triangle b?
    11·1 answer
  • If f(x) = 4x+3, find f-1 (x)
    5·1 answer
  • Us the regression equation, y= 4.39x-6.77, to predict the age of a tree that is 125 cm in diameter
    8·1 answer
  • PLEAsSEEEEEEE I NEEEED IT
    8·2 answers
  • An election ballot asks voters to select six city commissioners from a group of seventeen candidates. In how many ways can this
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!