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
14

The perimeter of the semicircle is 25.71 cm. Calculate the value of radius x. Take pi to be 3.142

Mathematics
1 answer:
yan [13]3 years ago
5 0

Answer:

5 cm

Step-by-step explanation:

Perimeter of semicircle =  \frac{1}{2}  \times 2\pi \: x +2x\\ 25.71 = 3.14 2\times x+ 2x\\ 25.71 = 5.14 2 x\\ x =  \frac{25.71}{5.142}  \\ x = 5  \: cm

You might be interested in
Which of the following are progressions?
professor190 [17]

In mathematics: Arithmetic progression, sequence of numbers such that the difference of any two successive members of the sequence is a constant. Geometric progression, sequence of numbers such that the quotient of any two successive members of the sequence is a constant. so i chose b)Sequences

7 0
3 years ago
Read 2 more answers
Classify the shape as precisely as possible based on its markings.
AlekseyPX

Answer:

c

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is the sum of 3/4 and 18/19
nadezda [96]
If you add them togeter just like making your t-charts

Ex1

3/4 18/19. List the factors of 19 and 4 if you subtract you have to find the GCF that will be on the bootom then do it to the top
4 0
3 years ago
Read 2 more answers
Need help with this question! Will attach pic! A satellite is to be put into an elliptical orbit around a moon as shown below.Th
Darina [25.2K]
An equation for the ellipse ( standard form ):
x²/a²  +  y²/b² = 1
Here is:  a - semi-major axis and b - semi-minor axis.
Radius of the moon is 1,000 km and the distance from the surface of the moon to the satellite varies from 953 km to 466 km.
a = 1,000 + 953 = 1,953 km
b = 1,000 + 466 = 1,466 km
Answer:
The equation is  x² / 1,953²  + y² / 1,466² = 1
or: x²/3,814,209  +   y²/2,149,156  = 1
4 0
2 years ago
In a class of 40 students, 25 are girls. A probability model is designed to help figure
Marysya12 [62]

Answer:

Step-by-step explanation:

15:25 in it's simplest form is 3:5

3:5 as a decimal is 0.6

I hope that's right aha :3

5 0
3 years ago
Other questions:
  • A parallelogram is transformed according to the rule (x, y) → (x, y). Which is another way to state the transformation?
    9·1 answer
  • What is 35 percent of 85??
    8·1 answer
  • “the product of a number and 3 is the same as the sum of that number and sione half of a number is 8 less than the number itself
    10·1 answer
  • Please solve all and work needs to be shown ❤️❤️
    8·1 answer
  • At a middle school, 30% of the students walk to school, 1/5 (20%) ride their bikes, 12.5 are dropped off by car, and the remaini
    14·2 answers
  • Hey please hurry?
    8·1 answer
  • If the sum of six consecutive odd integers is 252, what is the smallest of the six integers?
    11·1 answer
  • $45 CD player 6% tax Calculate the total including tax, tip or markup. pls show work
    6·2 answers
  • Please help algebra II
    7·1 answer
  • Casey makes a grape salad using green grapes and red
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!