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kipiarov [429]
2 years ago
15

Need urgent help with this math

Mathematics
1 answer:
mash [69]2 years ago
6 0

Answer:

i need points so i am answering

Step-by-step explanation:

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I need help!! This is getting a little harder than I expected
MAXImum [283]

Length of the side = 9 cm

Diagonal = 9\sqrt{2} cm

Solution:

Area of the square = 81 square centimeters

In square all sides are equal.

Area of the square = side × side

Side × side = 81

Side² = 9²    (∵81 = 9²)

Taking square root on both sides, we get

Side = 9 cm

Length of the side = 9 cm

To find the length of the diagonal:

In square all the angles are right angle.

Diagonal splits the square into two right angle triangle.

Using Pythagoras theorem,

<em>In right triangle, square of the hypotenuse is equal to the sum of the square of the other two sides.</em>

Here, diagonal is the hypotenuse.

\text{Diagonal}^2=9^2+9^2

\text{Diagonal}^2=81+81

\text{Diagonal}^2=2\times 81

Taking square root on both side,

Diagonal = 9\sqrt{2} cm

6 0
3 years ago
PLEASE HELP ME !!!!!!!!
OLga [1]

Answer:

2nd option is correct...................................

4 0
2 years ago
Read 2 more answers
The weight of water is 62 and one half lb per cubic foot. How many cubic feet would be occupied by 180 lb of​ water?
inessss [21]

<u>Answer:</u>

2\frac{22}{25} cubic feet

<u>Step-by-step explanation:</u>

We are given that the weight of water is 62 and one half lb per cubic foot and we are to find the number of cubic feet that would be occupied by 180 lb of water.

For that, we will divide total amount of water by per unit weight of water:

Cubic feet occupied by 180 lb of water = \frac{180}{62.5} = = 2.88 cubic feet or 2\frac{22}{25} cubic feet


8 0
3 years ago
What expressions are equivalent to q+p+q+p+q
Kipish [7]
You can resolve all of them.
so the first one would be 3q+2p
that second 2p+3q
the third 2p+2q+q which equals 2p+3q

they all end up as the same thing so both are equivalent
6 0
3 years ago
Answer These Math Questions.
larisa86 [58]
1.

558 can be rounded to 600.

44 can be rounded to 40.

600 x 40 = 24,000



2.

9 x 802 = 9 (800 +2) =7200 + 18 = 7218



3.

3699 x 7 = (3700-1) x 7 = 25,900 - 7 = 25,893



4.

34 x 93 = 34 x (100-7) = 3400 - 238 = 3162



5.

678 x 87 = 58,986
5 0
3 years ago
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