Answer:
44
Step-by-step explanation:
33:11 = 132:44
Answer:
see explanation
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
(x - 3)² + (y + 4)² = 36 ← is in standard form
with (h, k) = (3, - 4 ) = centre and r = = 6
Susan interpreted the values of h and k incorrectly by using the values - 3 and 4 instead of taking the negative of them.
She also divided 36 by 2 , thus omitting the root of 36
6.6cm and 660mm are equal.
Thanks.
Piper and sawyer reposted it for you uu
Explanation:
Pay attention to the slopes of these lines. The slope is the value stuck to x.
How to know if lines are <u>perpendicular</u>:
The slopes are the negative reciprocals of each other. This means that in fraction form, their top and bottom are switched, and their sign changes from pos-->neg or neg-->pos.
Ex of perpendicular lines:
y = 3x + 2 AND y = -1/3 x + 4
y = 2/3x + 1 AND y = -3/2x + 1
Not perpendicular example: y = 3x + 1; y = 1/3x + 2 because sign not changed.
How to know if lines are <u>parallel</u>:
The slopes are the same.
Ex: y = 5x + 12 is parallel to y = 5x + 300
SPOILERS
In the question given to you:
Lines a and c are parallel because they have the same slope, 8.
Line b is not perpendicular to a and c because its slope sign is not negative to a and c.