Answer is A. 20.25
cause 20.25 x 9 = 81
√81 = 9
so 9 is the geometric mean <span>between 4 and 20.25</span>
1 - yes 100 and 75 are both collinear both are the same line.
2 - She can conclude that there both similar because the both go the same direction and both same shape.
3 - AB would equal 150 because the other one was 100 and the other angle was 25 down. So AB would equal 150.
Hope I helped
Answer:
The answer to your question is 7 and -1/7
Step-by-step explanation:
Data
First line Second line
B (4, 4) A (0, 1)
M (3.5, 0.5) C (7, 0)
Formula
Slope = m = (y2 - y1) / (x2 - x1)
Process
1.- Calculate the slope of the first-line
x1 = 4 y1 = 4
x2 = 3.5 y2 = 0.5
-Substitution
m = (0.5 - 4) / (3.5 - 4)
-Simplification
m = -3.5 / -0.5
-Result
m = 7
2.- Calculate the slope of the second line
x1 = 0 y1 = 1
x2 = 7 y2 = 0
-Substitution
m = (0 - 1) / (7 - 0)
-Simplification
m = -1/7
-Result
m = -1/7
ok so I am no expert (Actually i am it says it on my profile) but the answer is 69/5555*^ I hope that this helps you and if it was so easy then why can't ya do it buddy! lol jkjkjkjk
Exact Area = 98pi
Approximate Area = 307.8760800518 (use calculator stored version of pi)
Approximate Area = 307.72 (using pi = 3.14)
Units are in square millimeters
======================================================
Explanation:
In 60 seconds, the hand sweeps out a full circle of radius 14. The area of this circle is
A = pi*r^2 = pi*14^2 = 196pi
Half of this is what the hand sweeps out in 30 seconds, so A/2 = (196pi)/2 = 98pi is the exact area it sweeps out. Your calculator would then show 98pi = 307.8760800518 approximately
If instead you use pi = 3.14, then the approximate area is 98*3.14 = 307.72
