Tan -1 = 13/21
31.7
32degrees
The picture is incomplete and the width is missing.
I am going to show you how to do it using any width.
The length shown is x + 4 and the width starts with - x.
Assume the width is - x + a.
Then the area of the rectangle with dimensions x + 4 and - x + a is calculated in this way:
1) given: (x + 4) (- x + a)
2) use distribuitive property: (x)(-x) + (x)(a) + (4)(-x) + (4)(a)
= - x^2 +ax -4x + 4a
3) Combine like terms: - x^2 + (a -4)x + 4a
If the polynomial missing were - x + 7, the answer would be:
- x^2 + (7 -4)x + 4(7) = - x^2 + 3x + 28
With this you are able to get the answer using the real values.
Mili means 1000 so 1000ml=1 L (ml=milileter, L=liter)
conversion factor
1L/1000ml=1 and
1000ml/1L=1
convert 2 and 1/4 L to ml
2 and 1/4L
try to convert with second conversion thing (1000ml/1L=1)
2 and 1/4L times 1000ml/1L=2000 and 1000/4 ml=2000 and 250 ml=2250 ml
