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
Artist 52 [7]
3 years ago
5

George has a square sandbox in the backyard. The sandbox has an area of 160 square feet. To the nearest foot, what is the length

of one side of the sandbox? 13 ft 12 ft 40 ft 80 ft
Mathematics
1 answer:
spin [16.1K]3 years ago
7 0

We know that the sandbox is square, and that the area is 160 sq ft. Since A = s^2 for a square, let's work backwards and find s if A = 160 sq ft = s^2.

s^2 = 160 = 16(10). We do this because 16 is the largest perfect square factor of 160.

Then the length of one side of the square is approx. s = 4√10 ft (12.65 ft)

You might be interested in
25 POINTS!
WITCHER [35]

Answer:

The cosine of the angle is: negative

The sine of the angle is: positive

Step-by-step explanation:

5 0
3 years ago
Factor 140c + 28 - 14a to identify the equivalent expressions.
Feliz [49]

Answer:

The answer to your question are letters A, C and D.

Step-by-step explanation:

To factor this polynomial we need to look for the common factor of the three terms.

To find it, get the greatest common factor

                        140    28   14     2

                          70    14     7     2

                          35     7     7     5

                            7     7      7     7

                             1     1       1    

Greatest common factor = 2 x 7 = 14  

Factor the polynomial

140c + 28 - 14a = 14 ( 10c + 2 - a)

Factor only 7          7(20c + 4 - 2a)

Factor only 2          2 (70c + 14 - 7a)

8 0
3 years ago
A supply company manufactures copy machines. The unit cost C (the cost in dollars to make each copy machine) depends on the numb
Ugo [173]
To answer this item, we take the differential of the equation and equate to zero.
 
                  C(x) = 0.8x² - 256x + 25939

Differentiation,
                dC(x) = 1.6x - 256 
                 dC(x) = 1.6x - 256 = 0

The value of x from the derived equation above is 160. 

Thus, the number of machine to be made in order to minimize the cost should be 160. 
4 0
3 years ago
Read 2 more answers
URGENT!!!!!!!!!!!!!!!!!!!!!!!!!!!
Blababa [14]

For this case we have that by definition, the circumference of a circle is given by:

C = \pi * d

Where:

d: It is the diameter of the circle

They tell us that:

d = \frac {35} {2}\\\pi = \frac {22} {7}

Substituting:

C = \frac {22} {7} * \frac {35} {2}\\C = \frac {770} {14}\\C = 55 \ cm

Thus, the circumference of the circle is 55 centimeters.

Answer:

Option B

6 0
3 years ago
Read 2 more answers
HELP!!! 30 points!
user100 [1]
Basically, the equator is like the x-axis of the world and the prime meridian is like the y-axis. You locate places by distances from these lines.
7 0
3 years ago
Read 2 more answers
Other questions:
  • If x=9 and y=−2, evaluate the following expression : 6x−8y
    9·2 answers
  • If the revenue for the week is $2000, and labor cost consists of two workers earning $8 per hour who work 40hours each, what is
    15·1 answer
  • 45% of what equals 90
    6·1 answer
  • PLEASE HELP ALGEBRA 1
    15·1 answer
  • Answer or u will fail ur next FSA
    14·1 answer
  • 5|2x + 4| – 3 = -3<br> Please help!
    10·1 answer
  • Which matrix is matrix B?
    15·1 answer
  • Graph the function<br> Need help ASAP plz
    7·1 answer
  • A teacher is making gift bags. Each bag is to be filled with pencils and stickers. The teacher has 24 pencils and 36 stickers to
    15·1 answer
  • 7x - 3= -3 + 7x<br><br> Can someone explain
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!