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
amid [387]
3 years ago
9

C=(7,-4) and D= (-8,5) CD=?

Mathematics
1 answer:
prisoha [69]3 years ago
3 0

Answer:

Step-by-step explanation:

x_{1}=7 \ ; y_{1} = -4\\\\x_{2} = -8 \ ; y_{2}=5\\\\CD = \sqrt{(-8-7)^{2}+(5-[-4])^{2}}\\\\=\sqrt{(-15)^{2}+(5+4)^{2}}\\\\=\sqrt{225+(9)^{2}}\\\\=\sqrt{225+81}\\\\=\sqrt{306}\\\\=\sqrt{3*3*2*17}\\\\=3\sqrt{34}

Distance = \sqrt{(x_{2}-x_{1})^{2}-(y_{2}-y_{1})^{2}}

You might be interested in
A rectangle has a perimeter of 35 1 half feet. If the length is 12 feet, what is the area of the rectangle?
Bess [88]

Answer:

The area of the rectangle is 69 feet squared.

Step-by-step explanation:

8 0
3 years ago
How many years would it take for a person in the united states to eat 855 pounds of apples
never [62]

It would take 30 years


4 0
3 years ago
In general, what would every child function have in common with the parent function f (x)= x?​
11Alexandr11 [23.1K]

Step-by-step explanation:

If f(x) =x, is the father function, then all it's child function would be equally inclined to x and y-axis respectively.

8 0
3 years ago
 A study found that healthy eating can help to cut the risk of heart disease. Therefore, a person can conclude that if they ea
Tasya [4]

Answer:

False

Step-by-step explanation:

It only cuts the risk as stated and other factors such as lifestyle, age, bloodpressure and past medical background also have an impact so you can still have heart issues.

7 0
3 years ago
Read 2 more answers
PLEASE HELP Word problem involving average rate of change
oee [108]

Answer:

(a): 26.1

(b): 27.9

Please see below for the steps.

Step-by-step explanation:

(a):

Use points (0,0) and (3, 78.3)

Use slope formula. The slope formula is also used to find average rate of change (just so you know).

y2-y1/x2-x1

78.3-0/3-0=78.3/3=26.1

Answer for (a) is 26.1

(b):

Use points (4, 147.6) and (9, 287.1)

Use slope formula.

y2-y1/x2-x1

287.1-147.6/9-4=139.5/5=27.9

The answer for (b) is 27.9

Hope this helps!

Please mark as brainliest if correct!

Have a great day!

5 0
1 year ago
Other questions:
  • Nola’s car gets approximately 42 miles per gallon. She is planning to drive x miles with her friends
    15·2 answers
  • A company rents out 15 food booth and 20 game booths at the county fair. The fee for a food booth is $100 plus $5 per day. The f
    9·2 answers
  • The perimeter of a rectangle is 96 ft. The ratio of its length to its width is 5 : 3. What are the dimensions of the rectangle?
    7·1 answer
  • tom paid $1,166.40 for a new refrigerator, including $86.40 tax. What was the price of the refrigerator?
    10·1 answer
  • Total brain fart! 24+5x=-x+6(5a-4)
    5·1 answer
  • Which is the graph of the function f(x)=x^3+x^2+x+1
    10·1 answer
  • Find the value of x and z<br><br> 20 points lol
    10·1 answer
  • Someone help please!!
    7·1 answer
  • Please help with these 2 answers i only have 10 minutes left
    10·2 answers
  • PQ=RQ what does b =
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!