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
Rashid [163]
1 year ago
10

Brown: Dilate triangle BCD with B(-4,-2)C(0, 2), and D(2, -4) using a scale factor of 5/2. What are the coordinates of D'?​

Mathematics
1 answer:
inessss [21]1 year ago
7 0

We get the coordinates of D' as (5, -10).

We have a triangle BCD.

We are given the coordinates as:

B(-4,-2) C(0, 2), and D(2, -4)

we will first find the distance between the points to get the sides of the triangle.

BC² = ( 0 + 4)² + (2 + 2)²

BC² = 16 + 16

BC = 4√2

CD² = (2 - 0)² + (-4 - 2)²

CD² = 4 + 36

CD = 2√10

BD² = (2 + 4)² + ( -4 + 2)²

BD² = 36 + 4

BD = 2√10

Now, we use a scale factor of 5 / 2.

So he coordinates of D' will be:

D' = ( 2 × 5 / 2 , -4 × 5 / 2 )

D' =( 5, -10)

Therefore, we get the coordinates of D' as (5, -10).

Learn more about coordinates here:

brainly.com/question/12959377

#SPJ9

You might be interested in
Evaluate 3x^2- 9 when x=-2
murzikaleks [220]

Answer:

3

Step-by-step explanation:

We know x = -2, so we can substitute -2 in for x

3x^2- 9

3*-2^2-9

Solve the exponent first (PEMDAS)

3*4-9

Multiply next

12-9

Subtract

3

6 0
3 years ago
Read 2 more answers
5. In the figure, . Solve for . Show your work.
natima [27]

Answer:

15

Step-by-step explanation:

6/10=9/x

cross multiply

6x=9*10

6x=90

x=90/6x=15

3 0
3 years ago
PLEASE HELP!! if sec x=5/3 what is the value of b? NL=20 LM=3b angle of L is x degrees.
Readme [11.4K]

Answer:

a. b=4

Step-by-step explanation:

\sec \theta =\dfrac{1}{\cos \theta} = \dfrac{Hypotenuse}{Adjacent}

From the attached triangle drawn below:

NL=20,  LM=3b, \angle L=x^\circ

\sec x =\dfrac{20}{3b}

Since we are told that:

\sec x =\dfrac{5}{3}\\$Then:\\\dfrac{20}{3b} =\dfrac{5}{3}\\$Cross multiply\\5 \times 3b =20 \times 3\\15b=60\\$Divide both sides by 15\\15b \div 15 =60 \div 15\\b=4

The correct option is A.

8 0
3 years ago
Using the formula C = 2πr, how would i find the circumference of a circle with diameter of 28 inches. and i have to round the as
arlik [135]
Sorry, this took me a while to upload!

5 0
3 years ago
Ax+by+c=0 solve for y
kvv77 [185]

Answer: \large\boxed{y=\frac{-ax}{b} -\frac{c}{b}}

Step-by-step explanation:

ax+by+c=0\\ax+by=-c\\by=-ax-c\\y=\frac{-ax-c}{b}\\y=\frac{-ax}{b} -\frac{c}{b}

8 0
1 year ago
Other questions:
  • suppose 200 students take an exam, graded on a scale of 0-100%. The median exam grade was 78%, the mean exam grade was 68%, and
    12·1 answer
  • Which equation in slope-intercept form represents the line that passes through (5,11) and (-4,7)
    8·2 answers
  • Some one help me please
    13·2 answers
  • Please help me 8th grade math i’ll give brainliest fastest answer
    10·1 answer
  • write the ratio as a fraction in simplest form, with whole numbers in the numerator and denominator. 24 g to 56 g (picture)​
    7·2 answers
  • WILL MARK BRAINLIEST!!
    7·2 answers
  • Race car driver traveled at an average speed of 120 miles per hour to finish a race in 2 hours. What is the length of the race?
    9·2 answers
  • Hii also wondering if anyone knows how to solve this :( thank you
    15·2 answers
  • What is the maximum height of of Anna's golf ball? The equation is y=x−0.04x^2
    15·1 answer
  • A farmer has a house at the point (0, 0). He has a corn field that can be found by driving 1 unit up, 2 units right, 3 units dow
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!