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
gavmur [86]
2 years ago
14

A homeowner wants to include a semicircular patio at the end of a square sandbox. She knows that the area of the semicircular pa

tio is 25.12 cm. What is the length of the side of the square?
Mathematics
1 answer:
stepladder [879]2 years ago
6 0

Answer:

8cm

Step-by-step explanation:

First you must know that the diameter of the semi-circular patio is equal to the length of one side of the square

Area of a semi circle = πr²/2

25.12  = πr²

25.12 = 3.14r²/2

r² = 25.12(2)/3.14

r² = 16

r = √16

r = 4

Get the diameter

d = 2r

d =2(4)

d = 8cm

Hence the length of the side of the square is 8cm

You might be interested in
David burns 220 calories riding her bike each hour. He wants to burn 550 calories riding his bike at the same rate. what answer
JulijaS [17]

Answer:

3

Step-by-step explanation:

4 0
3 years ago
PLSSS HELP PANICKING
devlian [24]

Answer:

<h2>John has $15 and Alex has $33</h2>

Step-by-step explanation:

a systems of equations can be made from the information on the problem

x+y=48

x=2y+3

since x= 2y+3 substitute 2y+3 in the firat equation to get:

(2y+3)+y=48  -> 3y+3=48 -> 3y=45  -> y=15

plug in 15 for y in the second equation to solve for x

x+15 =48 --> x=33

8 0
2 years ago
Una piscina rectangular de 15 metros de largo por 9 metros de ancho està rodeada por un
stira [4]

Answer: 2 meters.

Step-by-step explanation:

Let w = width of the cement path.

Dimensions of pool : Length = 15 meters , width = 9 meters

Area of pool = length x width = 15 x 9 = 135 square meters

Along width cement path, the length of region = 2w+15

width = 2w+9

Area of road with pool =  (2w+15) (2w+9)

= 4w^2+30w+18w+135\\\\=4w^2+48w+135

Area of road = (Area of road with pool ) -(area of pool)

\Rightarrow\ 112 =4w^2+48w+135- 135\\\\\Rightarrow\ 112= 4w^2+48w\\\\\Rightarrow\ 4 w^2+48w-112=0\\\\\Rightarrow\ w^2+12w-28=0\ \ \ [\text{Divide both sides by 4}]\\\\\Rightarrow\ w^2+14w-2w-28=0\\\\\Rightarrow\ w(w+14)-2(w+14)=0\\\\\Rightarrow\ (w+14)(w-2)=0\\\\\Rightarrow\  w=-14\ or \ w=2

width cannot be negative, so w=2 meters

Hence, the width of the road = 2 meters.

8 0
3 years ago
* Required
Furkat [3]
B. 19.8

Use the Pythagorean theorem:
14.2^ + x^ = 24.4^
201.64 + x^ = 595.36
x^ = 393.72
x = 19.84
8 0
3 years ago
Solve for 3(2x-1)+7=6x-3-2(-4x)
Svetllana [295]

Answer:

x = 1.14

Step-by-step explanation:

3(2x - 1) + 7 = 6x - 3 - 2(-4x) [Given Equation]

6x - 3 + 7 = 6x - 3 + 8x [Distributive Property]

6x + 4 = 14x - 3 [Combine like-terms]

-8x + 4 = -3 [Subtraction Property of Equality]

-8x = -7 [Subtraction PoE]

x = 1.14 [Division PoE]

3 0
3 years ago
Other questions:
  • Brenda is 4 years older than Walter, and Carol is twice as old as Brenda. Three years ago, the sum of their ages was 35. How old
    15·2 answers
  • I NEED HELP PLEASE!!<br><br> what is the angle of elevation??
    13·2 answers
  • Simplify: − 7( 21 − 16) + 3(9) (24 − 18)
    13·2 answers
  • there are 15 cars in the parking lot that are white and 25 cars that are not right what is the theoretical probability of random
    6·2 answers
  • Name the transformation in the picture 1​
    15·2 answers
  • Someone help lol thx ​
    9·2 answers
  • What are the slope and the y-intercept of the linear function that is represented by the table​
    13·1 answer
  • Urgent helps bxjdidjdjjfjdhhdhdh
    6·1 answer
  • PLS HELP ME ASAP!! TEN POINTS!!! Select each correct answer.
    11·1 answer
  • stack of mail consists of 8 bills, 10 letters, and 6 advertisements. One piece of mail is drawn at random and put aside. Then a
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!