Which expression are equivalent to 2r+(t+r)

Bad White [126]

9514 1404 393

Answer:

(c) 144 m²

Step-by-step explanation:

The surface area can be calculated from ...

SA = 2(LW +H(L+W))

SA = 2((6 m)(6 m) +(3 m)(6 m +6 m))

= 2(36 m² +(3 m)(12 m)) = 2(36 m² +36 m²) = 2(72 m²)

SA = 144 m²

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Additional comment

The units of area are square meters (m²). The units of volume are cubic meters (m³).

5 0

3 years ago

Molodets [167]

The closest distance between point A and point A' is 8.5 ⇒ B

Step-by-step explanation:

Let us revise the translation of a point

If the point (x , y) translated horizontally to the right by h units then its image is (x + h , y)
If the point (x , y) translated horizontally to the left by h units then its image is (x - h , y)
If the point (x , y) translated vertically up by k units then its image is (x , y + k)
If the point (x , y) translated vertically down by k units then its image is (x , y - k)

∵ Point A is located at (-5 , 2)

∵ Point A is translated 8 units to the right and 3 units up

- That means add x-coordinate by 8 and add y-coordinate by 3

∴ Point A' located at (-5 + 8 , 2 + 3)

∴ Point A' located at (3 , 5)

The distance between two points $(x_{1},y_{1})$ and $(x_{2},y_{2})$