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
Kipish [7]
3 years ago
13

Find the area of a square with a diagonal of 8cm.

Mathematics
1 answer:
klio [65]3 years ago
7 0
You have to use the Pythagorean theorem but there is a little twist here since a square has has equal sides. So:
x^2+x^2=8
2x^2=8
2/2x^2=8/2
x^2=4
√x^2=√4
x=2
The side of the square is 2.
So now the area of a square is:
Side×Side
2×2=4
The area of the square is 4 centimetres
You might be interested in
| 5t-1 |=6 <br><br> Show all work
kipiarov [429]

Answer:

t = 1.4

Step-by-step explanation:

If you multiply 5 and 1.4 together, you get 7. Then, you do 7 - 1, and you get 6.

The inverse operation symbol things don't matter if the answer you get inside the two vertical bars is positive.

5 0
3 years ago
Read 2 more answers
Y=5x-4
anyanavicka [17]

Answer:

\displaystyle -5x + y = -92\:or\:y = 5x - 92

Step-by-step explanation:

−12 = 5[16] + b

80

\displaystyle -92 = b \\ \\ y = 5x - 92

If you want it in <em>Standard</em><em> </em><em>Form</em>:

y = 5x - 92

- 5x - 5x

__________

\displaystyle -5x + y = -92

I am joyous to assist you anytime.

7 0
3 years ago
Let ​ f(x)=x2−8x+19 ​ . What is the minimum value of the function?​ Enter your answer in the box. ​
ella [17]
The minimum value is 3.
6 0
3 years ago
Read 2 more answers
8 people eat at Charlie Brown's for Thanksgiving. How many different seating
never [62]

Answer: 40,320

Step-by-step explanation: Let's say that there is person A,B,C,D,E,F,G,H. and 8 chairs. For the first chair, 8 different people could potentially sit in it, making 8 different possibilities. No matter who sits there, the logic follows the next table. However, since one person is sitting in the first chair, there are 7 different possibilities about who would be sitting in the second chair. If you multiply the two together, there are 56 different possibilities just for the first and second chair. For the third chair, there are 6 different possibilities about whom could sit. Multiply 56*6 and you get 336 possibilities. Keep multiplying out and you get a grand total of 40,320 different arrangements!

4 0
3 years ago
Read 2 more answers
Any has 2 rows of 4 sports trophies on each of her 3 shelves. How many sports trophies does Amy have?
Alla [95]
2 multiply by 4 is 8 , 8 multiply 3 is 24
5 0
3 years ago
Read 2 more answers
Other questions:
  • Helllpppppppppppppppp asap 22 pts
    10·1 answer
  • how to change the following indicated sums to indicated products as in the preceding model: 5 • 20 + 5 • 3
    15·1 answer
  • Which point satisfies the system of equations y = 3x − 2 and y = -2x + 3?
    7·1 answer
  • Simplify <br> (7-8i)+(-12-4i)
    9·2 answers
  • Compare and contrast simplifying the numeric expression 3-(2+5) to the algebraic expression 3x-(2x+5)
    10·1 answer
  • Need some help ASAP!!!!!!
    15·1 answer
  • PLEASE PLEASE PLEASE HELP ME PLEASE
    13·2 answers
  • Need help with other math who’s gonna help me brainlest and points
    5·1 answer
  • NEED HELP ASAP!!!!! 40 POINTS<br><br><br> pls show work
    15·2 answers
  • Find the probability of rolling a prime number when a 16-sided die is rolled.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!