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
BARSIC [14]
3 years ago
7

Work out the perimeter of the semi-circle take pi to be 3.142​

Mathematics
1 answer:
kupik [55]3 years ago
7 0
Answer:
P = 25.71 cm
Step-by-step explanation:
Perimeter of semicircle = πD/2
Where D=10 cm
P = (3.142)(10)/2
P = (3.142)(5)
P = 15.71 cm
Complete Perimeter of Semicircle = P + Diameter
= 15.71 + 10
= 25.71 cm
You might be interested in
Trucks in a delivery fleet travel a mean of 110 miles per day with a standard deviation of 38 miles per day. The mileage per day
Montano1993 [528]

Answer: 0.1824

Step-by-step explanation:

Given : The mileage per day is distributed normally with

Mean : \mu=110\text{ miles per day}

Standard deviation :  \sigma=38\text{ miles per day}

Let X be the random variable that represents the distance traveled by truck in one day .

Now, calculate the z-score :-

z=\dfrac{x-\mu}{\sigma}

For x= 132 miles per day.

z=\dfrac{132-110}{38}\approx0.58

For x= 159 miles per day.

z=\dfrac{159-110}{38}\approx1.29

Now by using standard normal distribution table, the  probability that a truck drives between 132 and 159 miles in a day will be :-

P(132

Hence, the probability that a truck drives between 132 and 159 miles in a day =0.1824

6 0
3 years ago
Here is my question it is worth 15 points!
irinina [24]

Answer:

What is your question????

3 0
3 years ago
Read 2 more answers
If the racetrack publishes that the odds in favor of a horse winning a race are 5 to 9, what is probability that the horse will
crimeas [40]
I divided 5 by 9 and multiplied it by 100 to get the percentage for the probability the horse will win. I got 55.55%. I subtracted 55.55 from 100 and got 44.45% chance of not winning the race.
5 0
3 years ago
Read 2 more answers
The Mejia family’s total monthly expenses are $5500. They pay 12% of their income to taxes. What is the minimum monthly salary t
lions [1.4K]
$5500×1.12= $6160. same method as the previous answer I gave you:)
4 0
3 years ago
Gym A charges a new member fee of $65 and $20 per month Gym B charges a new member fee of $25 and $35 per month but you get a di
Vinvika [58]

Answer: it will take 5 months for both gyms to cost the same.

Step-by-step explanation:

Let x represent the number of months for which the total cost of gyms are the same.

Gym A charges a new member fee of $65 and $20 per month. This means that the cost of using gym A for x months would be

20x + 65

Gym B charges a new member fee of $25 and $35 per month but you get a discount of 20% monthly.

20% of 35 is 20/100 × 35 = 7

The monthly charge would be

35 - 7 = 28

This means that the cost of using gym A for x months would be

28x + 25

The number of months that it will take for the cost of both gyms to be the same would be

20x + 65 = 28x + 25

28x - 20x = 65 - 25

8x = 40

x = 40/8 = 5

4 0
3 years ago
Other questions:
  • How can you 6/3 into a mixed number?
    9·2 answers
  • Y=3x+4 y=36x+7 determine whether the graph of each pair of equations are parallel, pendicularbor neither
    12·1 answer
  • An iron ball is bobbing up and down on the end of a spring. The maximum height of the ball is 46 inches and its minimum height i
    6·2 answers
  • 5 points How would you describe the lines represented by railroad tracks?explain
    13·1 answer
  • SOMEONE, PLEASE HELP FAST!!! FOR BRAINLIEST!!!!
    14·1 answer
  • 0=(2y−1)(8−y) Let y=u, y=d. What is the value of u×d
    13·2 answers
  • Find the value of x and y. Show all your work neat and<br> in order.
    5·1 answer
  • I need help again and sorry ik this is easy but please
    7·2 answers
  • 1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+1+1*1+(Just for fun)
    13·2 answers
  • GEOMETRY - I NEED HELP!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!