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The graph below shows Alisha's height above ground as she walks up the stairs.
Alisha's Walk
Height (floors)
chools
Time (min)
Marcus is walking at the same rate as Alisha. After 12 minutes he is on the ninth floor. Which
equation can be used to find y, the height above ground in floors for Marcus at x minutes?
А
-
B
y-1-}x-12)
v-9-(x-12)
cy-12 = {(x+9)
y+9 =(x-12)
D
Find the slope first, then use the "After 12 minutes he is on the ninth floor" for your "X" & "y" input.

answer

a,b, and d

explanation

a reflection angle is more than

but less than;

an angle that measures

is a reflex angle.(true)

an angle that measures less than

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

for this case we have that by definition, the surface area of a cylinder is given by:

where:

r: it is the radius of the cylinder

h: it is the height of the cylinder

we can also rewrite it as:

where:

la: it's the lateral area

ba: area of the base

option a

parallel lines have the same slope. so if the green line has a slope of -4, the slope of the red line is also -4.