How do you do the bottom 4? Thanks!
1 answer:
Alrightie! So we are trying to isolate independent variables! WOO HOO!
So for a.) y = mx + b which is the point-slope formula... do this :)
y = mx + b
y - b = mx + b - b
y - b = mx
b.) follow the same way I did above, but instead of dividing x, divide by m.
c.) I = prt which is the equation for interest.
divide each side by pr.
d.) This one is like a and b. So lemme show ya.
So for a.) y = mx + b which is the point-slope formula... do this :)
y = mx + b
y - b = mx + b - b
y - b = mx
b.) follow the same way I did above, but instead of dividing x, divide by m.
c.) I = prt which is the equation for interest.
divide each side by pr.
d.) This one is like a and b. So lemme show ya.
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Answer:
Step-by-step explanation:
(1) As definition, the area () of a circle is calculated by:
x
with
is radius of circle.
(2) The relation between radius () and diameter (
) of a circle is:
= 2 x
(3) Applying the Pythagorean theorem for a square with sides of length ,
the relation between side and diagonal
is:
=> The diagonal () of that square is calculated by:
=
(4) The square fits exactly inside a circle, with each of its vertices being on the circumference of the circle.
Applying the theorem of inscribed angle in a circle, the measure of arc BD is twice as the measure of inscribed angle BAD.
In other words, the measure of arc AC = 2 x 90 = 180 deg, or half of circle.
It means that the diagonal BD is coincide with a diameter of circle.
=>
or x
=
or =
Substitute back into original formula used for calculating the area of circle:
=> A = x
=
x
=> x
=> x
=
x
= 5.97 cm
Hope this helps!
:)
Answer:
Step-by-step explanation:
attached is the solution
