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Aliun [14]
3 years ago
12

How to calculate the area of a square

Mathematics
1 answer:
lilavasa [31]3 years ago
7 0

Answer:

a × a × a ×a

Step-by-step explanation:

Area is measured in "square" units. The area of a figure is the number of squares required to cover it completely, like tiles on a floor.

Area of a square = side times side. Since each side of a square is the same, it can simply be the length of one side squared.

square has one side of 4 inches, the area would be 4 inches times 4 inches, or 16 square inches.

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What is 50% of 180 ?
dexar [7]

Answer:

90

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The equation of a circle is x2 + y2 + 6x + 4y + 10 = 1. What is this equation written in its standard form?
Over [174]
You need to complete the square in x and in y,

x^{2}  + y^{2} + 6x + 4y + 10 = 1

First, group the x-terms and the y-terms separately.

x^{2} + 6x  + y^{2} + 4y + 10 = 1

Move the 10 to the right side by subtracting 10 from both sides.

x^{2} + 6x  + y^{2} + 4y = -9

Now complete the square in x and in y.
The constant you need to add to complete each square is the square of half of the coefficient of the x or y term. Make sure to add the constants to both sides of the equation.

x^{2} + 6x  + 9 + y^{2} + 4y + 4= -9 + 9 + 4

(x + 3)^{2} + (y + 2)^{2} = 4
8 0
3 years ago
Please help
vfiekz [6]

Answer:

Step-by-step explanation:

3x + 7 + 9x - 43 = 180

                    12x = 216

                      x = 18

m∠4 = 3(18) + 7 = 61°

m∠5 = 9(18) − 43 = 119°

5 0
3 years ago
Pls help with this question.
avanturin [10]

Answer:

24 ml oil

60 g onions

360 g potatoes

400 ml milk

Step-by-step explanation:

The recipe makes 16 portions and you only need 4 portions. Since 16 is 4 times bigger than what you need, just divide everything you've been given by 4.

<em>*you can choose to convert into the correct units of measurement before or after dividing. I converted after dividing. Either way works fine though.</em>

1) 96/4 = 24 ml

2) 240/4 = 60 g

3) 1.44/4 = 0.36 kg

They want it in grams, so times it by 1,000 to convert. this gives you 360 g.

4) 1.6/4 = 0.4 l

They want it in ml, so times it by 1,000 to convert. this gives you 400 ml.

Hope this helped : )

3 0
4 years ago
What is the simplified form of the expression <br> 2 radical 18 - 5 radical 32
Alex Ar [27]

Answer:

-14√2

Step-by-step explanation:

Note that 18 = 2*9, and that 9 is a perfect square.  Therefore,

2*√18 = 2*3*√2, or 6√2.

Next, note that 32 = 2*16, and that 16 is a perfect square.  Therefore,

-5*√32 = -5*√2*√16, or -5*√2*4, or -20√2.

Combining these two results, we get:

6*√2 - 20√2, or -14√2

7 0
3 years ago
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