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
k0ka [10]
3 years ago
13

If DE=1.5m-9 and EF=4.5m-42 what is the value of DF (equilateral triangle)

Mathematics
1 answer:
11111nata11111 [884]3 years ago
3 0

Answer:

DF = 7.5

Step-by-step explanation:

Since the 3 sides are congruent, then

EF = DE , that is

4.5m - 42 = 1.5m - 9 ( subtract 1.5m from both sides )

3m - 42 = - 9 ( add 42 to both sides )

3m = 33 ( divide both sides by 3 )

m = 11

Thus

DE = 1.5m - 9 = 1.5(11) - 9 = 16.5 - 9 = 7.5

Then

DF = 7.5

You might be interested in
Can someone please help me on this THIS IS URGENT!!!!
andre [41]
What are we helping with
7 0
3 years ago
Read 2 more answers
What is -7.54 - 1.98 - 0.75
Vinil7 [7]

Answer:

-10.27

Step-by-step explanation:

-7.54-1.98=-9.52, and -9.52-0.75=-10.27

8 0
3 years ago
Read 2 more answers
Solve for c<br> 4(3+c)+c=c+4
Sonja [21]

Answer:

c = -2

Step-by-step explanation:

Given equation is :

4(3+c)+c=c+4

12 + 4c + c = c + 4

12 + 4c = 4                    [dividing by 4]

3 + c = 1                         [adding and subtracting 3]

c = -2

6 0
3 years ago
Read 2 more answers
Select True or False for each statement. 16.32 rounded to the nearest whole number is 16 feet per second. ? 16.32 rounded to the
Maurinko [17]

Answer:

a)16.32 rounded to the nearest whole number is 16 feet per second? True

b) 16.32 rounded to the nearest tenth is 16.3.? True

c) 16.32 rounded to the nearest hundredth is 16.33. ? False

Step-by-step explanation:

Select True or False for each statement.

a) 16.32 rounded to the nearest whole number is 16 feet per second. ?

16.32 to nearest whole number = 16 feet per second. This statement above is true.

b) 16.32 rounded to the nearest tenth is 16.3. ?

The number in the tenth position is 3, the number after it is 2.

Hence, 16.32 to the nearest tenth = 16.3

Hence, the above statement is true.

c) 16.32 rounded to the nearest hundredth is 16.33. ?

The number in the hundredth position is 2. There is no number after 2.

Hence,

16.32 to the nearest hundredth is 16.32

Hence, 16.32 rounded to the nearest hundredth is 16.33 is a false statement.

5 0
2 years ago
Which of the following best defines 42/3
Eduardwww [97]
42 divided by 3 is 14
42 over 3 is a whole number of 14
5 0
3 years ago
Other questions:
  • ABCD is a trapezoid with median EF. a. AB = 15, DC = 11, then EF = ? b. EF = 14, DC = 10, then AB = ? c. EF = 18, AB = (5n - 9),
    5·1 answer
  • Which box is greater,a 1.5 lb box of raisins or a 650 gram box of raisins show work?
    15·1 answer
  • Create equations to solve for missing angles may be hard for me to solve. Need help on this!!​
    10·1 answer
  • Explain why rational exponenets are not defined when the denominator of the exponent in lowest terms is even and the base is neg
    11·1 answer
  • What digits makes 3,71? Divisible by 3 (connections academy unit test)
    9·1 answer
  • Write the equation for the following story: Jada’s teacher fills a travel bag with 5 copies of a textbook. The weight of the bag
    8·1 answer
  • What is the classification of the polynomial by terms?
    15·1 answer
  • The coffee cup can hold 7/9 of a pint of liquid. If Emily pours 2/3 of a pint of coffee into a cup, how much more milk can she a
    14·2 answers
  • Translate each word phrase into a numerical expression
    11·1 answer
  • The work of a student to solve the equation 3(3x − 4) = 8 + 2x + 5 is shown below: Step 1. 3(3x − 4) = 8 + 2x + 5 Step 2. 6x − 7
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!