Answer:
y = 4x - 7
Step-by-step explanation:
y = mx + b where m = slope and b = y-intercept
In this case m = 4 and y-intercept b = -7
Equation
y = 4x - 7
If you think about it, an octagon is made up of 8 triangles. So you first find the area of one triangle then multiply it by 8 for the total area:
A=1/2bh
A=1/2(9.9)(12)
A=59.4
59.4 x 8= 475.2
Therefore the total area for the octagon should be 475.2 units^2
Hope this helps !
Well let's pretend that decimal wasn't there, and the question was just asking √81. You should know that the answer to √81 is 9. So now, let's put the decimal back in its place so the question is √.81 again. You just have to do the same thing to the answer by adding a decimal in front of it. Therefore:
√81 = 9
√.81 = .9
Your answer is 0.9 :)
If two or more polygons are congruent, you can place one on top of the other, and they will match exactly. Congruent polygons do not have to be parallelograms or regular. Options A, B, and E are true.
Answer: B. A, B, and E