Answer:
8.1 * 10^-2
Step-by-step explanation:
Scientific notation is a number with it's largest digit in the one's place and its succeeding digits following it as decimals, then multiplied by a power of ten.
Appling this knowledge to the given number, we can conclude:
0.0810
= 0.081
= 8.1 * (1/10) * (1/10)
= 8.1 * 10^-1 * 10^-1
=9.1 * 10^-2
Distribute the outside terms through the terms inside the parenthesis.
2(x - 4) + 7 = 3
2x - 8 + 7 = 3
Combine like terms.
2x - 1 = 3
Add 1 to both sides of the equation.
2x = 4
Divide both sides by 2.
x = 2
Answer:
C
Step-by-step explanation:
Find the vertical and horizontal components of the tension
vertical component=110 N*sin 25°-----> -46.5 N (down)
horizontal component=110 N *cos 25°----> -99.7 N (left)
the vector diagram in the attached figure
Well if it is touching the x-axis, the radius is 3 units.
C = 2 * pi * r = (2)(3.14)(3) = 18.8 or so