Answer:
138.6
Step-by-step explanation:
Answer:
Plato answer is 13863
Step-by-step explanation:
Plato answer is 13863
Cos(x) = 1 at 0 and 2pi 360 and -360 is the same angle as 2pi so all of the above if you start at 0 and make a complete circle (360) you will be back at point 0.
Answer:
Step-by-step explanation:
x^2-1=0
Add 1 to both sides of the equation.
x^2=
1
Take the square root of both sides of the equation to eliminate the exponent on the left side.
x
=
±
√
1
Any root of 1 is x
=
±
1
First, use the positive value of the ±
to find the first solution.
x=
1
Next, use the negative value of the ±
to find the second solution.
x
=
−
1
The complete solution is the result of both the positive and negative portions of the solution.
x
=
1
,
−
1
Let w and l be the length and height of the rectangle.
We know that:
Substitute the first equation in the second:
Use the first equation to compute the length:
So, length = 7 cm; width = 6 cm
