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
Likurg_2 [28]
3 years ago
11

A triangle was dilated by a scale factor of 2. If cos a° = three fifths and segment FD measures 6 units, how long is segment DE?

Mathematics
2 answers:
kiruha [24]3 years ago
6 0

Answer:

10 units

Step-by-step explanation:

Given that:

Cos a = 3 /5

From trigonometry ;

Cos θ = Adjacent / hypotenus

Side Adjacent angle a = 3 = FD

Hypotenus = 5 = DE

3 / 5 = FD / DE

FD = 6 units

3/5 = 6/DE

DE * 3/5 = 6

DE = 6 ÷ 3/5

DE = 6 * 5 /3

DE = 30 /3

DE = 10 units

Artist 52 [7]3 years ago
4 0

Answer:

c

Step-by-step explanation:

You might be interested in
x and y are integers between 0 and 10 that satisfy the equation shown below. x2=y⎯⎯√+3 What values for x and y satisfy the equat
8_murik_8 [283]
<span>x2=y⎯⎯√+3  
x^2 =y-1.732051</span>
7 0
3 years ago
An object is moving in a straight line. It initially travelz at a speed on 9 meters per second, and speeds up at a constant rate
Crank

Answer:13 meters per second

Step-by-step explanation:

5 0
3 years ago
Stacy decided that she would start doing sit ups every day. Her plan each day was to do twice as many sit ups as she had done th
Whitepunk [10]

Answer:

Day five= 32 sit ups

Step-by-step explanation:

Day 1= 2 sit ups

Day 2= 4 sit ups

Day 3= 8 sit ups

Day 4= 16 sit ups

Day 5= 32 sit ups

8 0
3 years ago
Describe the steps you would use to solve the equation 5( 2a - 3 ) = 20 + a.
Valentin [98]

Answer:

Distribute the 5 to get 10a-15=20+a and solve

4 0
3 years ago
2.A spinner is divided into 20 equal sections. What is the probability of the spinner's pointer landing on section 5
lisabon 2012 [21]
I believe it's 1/20!

I hope this helps!
4 0
3 years ago
Other questions:
  • 2x5x1742x2133+12/4= PlS hellllp
    6·1 answer
  • I don't get it. Can you also explain why and the steps
    5·1 answer
  • In a basketball game, the bulldogs make a total of 21 shots. Some of the shots are 2-pt shots while others are 3-pt shots. The b
    14·1 answer
  • Solve 3x-4= 7 you may use the flowchart to help you if you wish
    5·2 answers
  • Bob wants to buy a TV that cost $500 plus 8% tax. He is getting a bonus of $45 and a birthday gift of $85 which he plans to use
    9·2 answers
  • If five less than three times a number is equal to 10 what is the value of that number
    10·2 answers
  • POINTS GIVEN HELP ME PLS POINTS WILL BE GUVEN
    7·1 answer
  • F(x)=-2x^2+17<br><br> Find f(10)
    8·2 answers
  • Select the correct answer.<br> What are the roots of this equation?
    6·1 answer
  • 6. If f(x) = -2r2 + x-5, what is f(3)?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!