Which describes the sequence of transformations used to obtain the image (triangle A') from the pre-image
(triangle A)?
dilation by a scale factor of 2, then rotation of 180°
about the origin
dilation by a scale factor of 2, then a reflection over
the x-axis
dilation by a scale factor of 1/2, then a rotation of
180° about the origin
O dilation by a smale factor of 1/2. then a reflection
over the x-axis

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm

d) by the cross product property, ab^2 = bc multiplied by ad

step-by-step explanation:

we are given

in the given triangle abc

angle a is 90° and segment ad is perpendicular to segment bc

we can see that

triangle(abc) and triangle(abd) are similar because they have common side and same angle (90 degree)

so, triangles(abc) and abd are similar

since, they are similar

so, the ratio of their sides must be equal

we get

now, we can cross multiply

and we get

so, this could be step to prove it

if she was to only spend a dollar she can get 1lb

step-by-step explanation:

b. 2 and 4

step-by-step explanation: