The area of the square ABCD with AB = 3 cm is .
- Area is the space covered by an object. It is the realm occupied by all forms. When measuring the area of a square, we only consider the length of the sides. Since all sides of a square are equal, its area is equal to the square of the sides.
- So the area of square = (side × side ) square units.
It is given that side of the square is 3 cm .
Putting side = 3 cm in the area formula we will get the desired area .
Now by using area formula , we get
Area
Hence, the area of the given square is .
Learn more about area here :
brainly.com/question/25260313
#SPJ9
Answer:
42 °C
Step-by-step explanation:
The value of Q zero minutes after Quinn got home is ...
Q = 42 -0.7·0 = 42
The temperature in degrees Celsius when Quinn got home was 42.
Answer:
Refer below for detailed explanation.
Step-by-step explanation:
Standard equation:
1. ax^2+bx+c=0.
Quadratic formula:
2. x = -b+-sqrt(b^2-4ac)/2a. .
Now two equations to find the factored form through these formulas above.
Through this identifying a,b and c.
ax^2+bx+c=0.
x^2+4x-21=0
Here a=1, b=4, and c= -21
Now applying in the quadratic formula.
x=-4+-sqrt(4^2-4(1)(-21))/2(1)
Now solve it and it becomes
x=3 or x= -7.
Another example :
x^2+3x-4=0
Here a=1, b=3 and c=-4.
X=-3+-sqrt(3^2-4(1)(-4))/2(1)
Now solve it and
x= -4 and x=1
P.s have attached the picture of quadratic formula as well.
When multiplied together you get the answer of (x+7) / (x-13) and the domain of that is (negative infinity, 13) and (13, infinity)
Answer:
(√2+1 )(√2+3 )
(√2×√2)+(√2×3)+(1×√2)+(1×3)
2+3√2+√2+3 = 5+4√2
=5+4√2