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
lara [203]
3 years ago
9

Find the length of CD

Mathematics
2 answers:
laiz [17]3 years ago
5 0

Answer:

D

Step-by-step explanation:

Calculate the length using the distance formula

d = √ (x₂ - x₁ )² + (y₂ - y₁ )²

with (x₁, y₁ ) = C(3, - 2) and (x₂, y₂ ) = D(7, - 8)

CD = \sqrt{(7-3)^2+(-8+2)^2}

      = \sqrt{4^2+(-6)^2}

      = \sqrt{16+36}

       = \sqrt{52} ≈ 7.2 → D

Andreas93 [3]3 years ago
5 0

Length of CD is 7.2 unit approx Option D.

Step-by-step explanation:

Given,

The two points are C(3,-2) and D(7,-8).

To find the length of CD.

Formula

The distance of two points (x_{1} ,y_{1}) and (x_{2} ,y_{2}) is \sqrt{(x_{2}-x_{1}  )^{2} +(y_{2}-y_{1} ) ^{2} }

Now,

Putting,

x_{1}= 3,y_{1}=-2, x_{2}=7, y_{2}=-8 we get,

CD = \sqrt{(7-3)^{2}+(-8+2)^{2}  }

= \sqrt{52} = 7.2 (approx)

You might be interested in
2:3= 10:<br><br> 12:15 = 4:<br><br> 1:5= 5:<br><br> 15:30 = 1 :
I am Lyosha [343]

Answer:

I think this is the answer

Step-by-step explanation:

2:3=10:15

12:15=4:5

1:5=5:25

15:30=1:2

5 0
3 years ago
A student writes "the quotient of 5 and x" to describe the algebraic expression -
pashok25 [27]

For this case we have to:

\frac {a} {b} = c

Where:

a: It's the Dividend

b: It is the Divider

c: Is the Quotient

Thus, the expression "the quotient of 5 and x" can be represented as:

\frac {5} {x} = y

Where "y" is the quotient of 5 and x.

ANswer:

\frac {5} {x} = y

5 0
3 years ago
A car starts a journey with a full tank of gas. The equation y=16 - 0.05x relates the number of gallons of gas, y, left in the t
mr_godi [17]

A.  The y-intercept is y = −0.05 x + 16 and the x-intercept is x = −20y + 320

B. The x-intercept represents the number of miles the car has traveled.

C. The y-intercept represents the number of gas in gallons.

4 0
3 years ago
Hi I need help :( Pls show your working..Will give brainliest for helpful answer​
Basile [38]

Answer:

number 10

dy/dx =(dy/dt).(dt/dx)

now find

dy/dt=4t-1. , dt/dx=1

so : dy/dx=(4t-1).(1)

dy/dx= 4t-1 ,we have x=t-3-----> t=x+3

subtitute at t

dy/dx= 4(x+3)-1=4x+12-1= 4x+11

5 0
3 years ago
Need help asap <br><br> From top to bottom <br><br> A<br> B<br> C<br> D<br> E
NNADVOKAT [17]

Answer:

B and D


Step-by-step explanation:


8 0
3 years ago
Other questions:
  • How to solve f(x)=x2-8x+5
    6·1 answer
  • Convert the following percent into common fractions in simplest form:
    13·1 answer
  • What is the angle in the picture below called?
    10·2 answers
  • Help will mark as brainliest
    8·2 answers
  • The Whitcomb Company manufactures a metal ring for industrial engines that usually weighs about 50 ounces. A random sample of 50
    7·2 answers
  • You rent a car for the day and are offered two payment options. With option A you pay $25 flat rate plus $0.15 per mile. With op
    10·1 answer
  • Evaluate √81/√9<br> help lolll
    5·2 answers
  • Which of the following ordered pairs is represented by a point located on the y-axis?
    14·1 answer
  • Replace the # symbols in the row 1 function to match the graph below f(x)=(x+5)(x+#)(x-1)(x-#)​
    12·1 answer
  • Put in least to greatest 3.1 , -3 , -3.75 , 3 1/2 , -3 1/5
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!