Answer:
h=13z-30+ 27/z
Step-by-step explanation:
Answer:
Length = 9units
Width = 7units
Step-by-step explanation:
It is said that the length is 2units more than the width
Assume that the width is x, then the length will be 2 + x
ie
Width = x
Length = 2 + x
Area of the rectangle = 63units
Area of rectangle = l * b
l - length of the rectangle
b - width of the rectangle
A = l * b
63 = (2 + x) * x
63 = ( 2 + x) x
63 = 2x + x^2
Let's rearrange it
x^2 + 2x - 63 = 0
Let's find the factor of 63
A factor that can be multiplied to give -63 and that can be added to give +2
Let's use -7 and +9
x^2 - 7x + 9x - 63 = 0
Separate with brackets
( x^2 - 7x) + ( 9x - 63) = 0
x( x - 7) + 9(x - 7) = 0
( x + 9)(x - 7) = 0
( x + 9) = 0
( x - 7) = 0
x + 9 = 0
x = -9
x - 7 = 0
x = 7
Note: the length of a rectangle can not be negative
So therefore,
x = 7
Length = 2 + x
= 2 + 7
= 9units
Width = x
= 7units
Answer:
Step-by-step explanatio
We look for the side
To know how many meters of wire we must first know the measurement of the sides of the land. They give us a land area of 196 m², as the land is square, we can take the square root of the area and we have the dimension of the sides
L = √196 m²
L = 14 m
Once the value of the side of the land is obtained, we proceed to determine the perimeter of the land, which will give us the size of the wire to fence
P = L + L + L + L
P = 14m + 14m + 14m + 14m
P = 56 m (this is the dimension of the wire for one turn of the ground)
They ask us for 5 laps.
56m * 5 = 280m
it takes 280 m
Answer:
θ = 2π
Rotational period = T
so the angular velocity is:
w=2πT
v=Dt
D=vt
Step-by-step explanation:
Answer:
The answer is 11 and 12
Step-by-step explanation:
you just find perfect squares
