Mateo begins his dive at sea level. He dives down 15 meters, and then rises up 4 meters. He dives again, going down 7 meters. Which equation models Mateo's movements, and uses the commutative property? (–15) + 4 + (–7) = (–7) + (–15) + (–4) (–15) + 4 + (–7) = 7 + 15 + (–4) (–15) + 4 + (–7) = 4 + (–15) + (–7) (–15) + 4 + (–7) = 4 + 15 + 7

Option (c)

Step-by-step explanation:

Let downward direction is negative and unward direction is positive. So, the given condition is :

Mateo begins his dive at sea level. He dives down 15 meters, and then rises up 4 meters. He dives again, going down 7 meters.

It means that,

Movements = (-15) m + (4) m +(-7) m

If she uses commutative property :

(-15) m + (4) m +(-7) m = 4 + (–15) + (–7)

Hence, the correct option is (c).

sorry, i can't understand your question. will later if you describe more clearly!

: )

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl