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
jekas [21]
3 years ago
9

A porch has the shape of a semicircle with a diameter of 7 ft.

Mathematics
2 answers:
Komok [63]3 years ago
4 0
A = pi * r^2

R = D / 2

R = 7 / 2

R = 3.5

A = 3.14 * 3.5^2

A = 3.14 * 12.25

A = 38.465

Divide it by 2 since its a semi-circle:

38.465 / 2 = 19.2325

So about 19 square feet.
andrey2020 [161]3 years ago
3 0
A = pi * r^2 

<span>A = 3.14 * 3.5^2 </span>

<span>A = 38.465 </span>

<span>38.465/2 = 19.2325 square feet of semicircle </span>
You might be interested in
Y'all please answer this, i asked this two times already :(
Andrew [12]

Answer:

-7 C

Step-by-step explanation:

The difference between -5 C and -12 C is -7 C, since -12 - (-5) = -7

5 0
3 years ago
Read 2 more answers
Question 13
charle [14.2K]

The amount to be invested today so as to have $12,500 in 12 years is  $6,480.37.

The amount that would be in my account in 13 years is $44,707.37.

The amount I need to deposit now is $546.64.

<h3>How much should be invested today?</h3>

The amount to be invested today = future value / (1 + r)^nm

Where:

  • r = interest rate = 5.5 / 365 = 0.015%
  • m = number of compounding = 365
  • n = number of years  = 12

12500 / (1.00015)^(12 x 365) = $6,480.37

<h3>What is the future value of the account at the end of 13 years?</h3>

Future value = monthly deposits x annuity factor

Annuity factor = {[(1+r)^n] - 1} / r

Where:

  • r = interest rate = 5.3 / 12 = 0.44%
  • n = 13 x 12 = 156

200 x [{(1.0044^156) - 1} / 0.0044] = $44,707.37

<h3>What should be the monthly deposit?</h3>

Monthly deposit = future value / annuity factor

Annuity factor = {[(1+r)^n] - 1} / r

Where:

  • r = 6.7 / 12 = 0.56%
  • n = 2 x 12 = 24

$14,000 / [{(1.0056^24) - 1} / 0.0056] = $546.64

To learn more about annuities, please check: brainly.com/question/24108530

#SPJ1

4 0
2 years ago
MULTIPLE CHOICE<br> What is LM?<br> 3x + 5<br> 4x + 7<br> LN = 33 cm
FromTheMoon [43]

Answer:

C. 14

Step-by-step explanation:

Add LM and MN

(3x + 5) + (4x + 7)

(4x + 3x) + (5 + 7)

7x + 12

As we know the total is 33

So,

7x + 12 = 33

Subtract 12 from 33, which gives me 21

Now,

7x = 21

To make x alone, divide both sides by 7, and then we will get x = 3

If x = 3

LM = 3x + 5

= (3*3) + 5

= 9 + 5

= 14

7 0
3 years ago
Hailey has a summer job at the water slide park. She earns $9.50 an hour as a lifeguard, but never works more than 25 hours in a
DanielleElmas [232]
The answer is the letter C
7 0
3 years ago
Read 2 more answers
Which of the equations below can be used to find the measure of ∠A?
Eduardwww [97]

Answer:

I believe the answer is C.

6 0
3 years ago
Other questions:
  • Darren teaches a class of 25 students. He assigns homework 3 times a week, and each assignment consists of 12 problems. How many
    15·1 answer
  • What annual rate of interest would you have to earn on an investment of $3500 to ensure receiving $273.00 interest after 1 year?
    10·1 answer
  • Hey what is 30 % of 3.5 million?
    13·2 answers
  • Newjet, Inc. manufactures inkjet printers and laser printers. The company has the capacity to make 70 printers per day, and it h
    10·1 answer
  • If x represents a number, then what is an expression for a number that is eight less than twice the value of x.
    11·1 answer
  • If the Volume of a rectangular prism is 720 what is the width
    12·1 answer
  • Can someone help me with this?
    8·1 answer
  • David walked for 20 minutes with the speed of 3 mph. How far did he walk?<br><br>HELP!!!
    11·1 answer
  • The temperature was 22. the wind chill made it feel like -8 what is he differences
    15·2 answers
  • Find the measure of the numbered angle in rhombus abcd
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!