Answer:
cos 60 1/2
sin0 0
tan45 1
Step-by-step explanation:
do it in calculator
These words are represented as homophones as they sound alike but have the different meanings.
Answer:
The correct option is A) 3 square inches; 
.
Step-by-step explanation:
It is given that the length of the frame is (2x-3) and the width is (x-2)
The area of the rectangle is: 
Where, A is the area l is the length and w is the width of the rectangle.
Put 
and 
in the area of the rectangle.
The area of the frame expressed as a polynomial is .
Now substitute x=3 in 
.
The area of the frame is 3 square inches.
Hence, the correct option is A) 3 square inches; .
Answer:
Let x = the third side
In a triangle, the sum of any 2 sides must be larger than the third side.
I believe this is called the triangle inequality theorem.
We can construct 3 inequalities to obtain the range of values for the third side.
(Inequality #1) 12 + 4 > x
16 > x
(Inequality#2) 12 + x > 4
x > -8 (we can discard this ... we know all sides will be positive)
(Inequality #3) 4 + x > 12
x > 8
So when we combine these together,
8 < x < 16
X (the third side) must be a number between 8 and 16. but not including 8 and 16
