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
GREYUIT [131]
2 years ago
7

This needs a little working out. Just part A to simplify to find 21.

Mathematics
1 answer:
prisoha [69]2 years ago
6 0

Answer:

see explanation

Step-by-step explanation:

Since the pentagon has one line of symmetry. This will be a vertical line through C, thus

CD = BC = x + 1 and ED = AB = 2x + 3

Perimeter = AE + ED + DC + CB + BA

                = 4x + 2x + 3 + x + 1 + x + 1 + 2x + 3 = 10x + 8

Perimeter is given as 21, thus

(b)

10x + 8 = 21 (subtract 8 from both sides )

10x = 13 ( divide both sides by 10 )

x = \frac{13}{10} = 1.3

You might be interested in
What is the force of gravity (in Newtons) acting between the Earth and a 100-kg person who is on board the International Space S
ratelena [41]

Answer:

f_{G}=317877.55 N = 317.8 kN

Step-by-step explanation:

f_{G}= (G*m_{1}*m_{2})/r^{2}  \\Where:\\f_{G}= force  of  gravity\\G=gravitational constant= 6.6x10^{-11}m^{3}kg^{-1}s^{-2}\\ m_{1}= earth mass = 5.9x10^{24}kg\\m_{2}=person mass = 100kg\\r= distance between the bodies=350km= 350 000 m

5 0
3 years ago
Write the function in function notation. <br> y=7b+8
sesenic [268]
F(b)=7b+8
you just need to change the x variable. make y into f(x) or in this case f(b)
3 0
3 years ago
Sheila needs to hire a baby sitter for the evening.
marissa [1.9K]

Answer: The answer is 21

5 0
2 years ago
Help me plss... with steps​
allochka39001 [22]

Step-by-step explanation:

1/4 = 1/4*100 = 25%

47% = 47/100

3/5 = 3/5 *100 =60%

6 0
3 years ago
Read 2 more answers
Order these numbers from least to greatest show all your work 1.84 √5 2.3 √2
fgiga [73]
1.84 , √5 , 2.3 , √2

√5 approximate value 2.2
√2 approximate value 1.4

1.84 , 2.2 , 2.3 , 1.4
= 2.3 > 2.2 > 1.84 > 1.4
= 2.3 > √5 > 1.84 > √2
8 0
3 years ago
Other questions:
  • If cotθ=3/4 and the terminal point determined by θ is in quadrant 3, then: (choose all that apply)
    7·1 answer
  • HELP ASAP EASY Q
    15·1 answer
  • Please help !!!!!!!!!!!
    5·1 answer
  • kAITLIN EANRS $6.50 FOR EACH HOUR SHE WORKS. ON FRIDAY SHE WORKED FOR 3 HOURS. SHE ALSO WORKED ON SATURDAY. IF SHE EARNED A TOTA
    13·1 answer
  • What is an exaple of linear
    15·2 answers
  • Find the difference of the two expressions.<br> (2/5 x + 5) - (1/5 x - 3)
    11·2 answers
  • Find the missing value of this triangle
    13·2 answers
  • 114.3 is what percent of 288? Round to the nearest hundredth. Please don’t get this wrong.
    6·1 answer
  • What is the ratio of the surface areas of two cones if the radius of one is 3 en and the slant height is 7 cm, and the other has
    9·1 answer
  • Given the data 12,39,21,18,24,17,12,25
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!