Answer:
51 in²
Step-by-step explanation:
formula of a triangle: 
bh
the base is 3 and the height is 7
1/2(3)(7)
1/2(21)=
10.5
Since there are 4 of these same triangles, we multiply by 4.
10.5 · 4 = 42 in²
formula of a square: bh
base is 3 and height is 3
(3)(3) =
9 in²
add them together and you get your answer of 51 in²
Answer:
D
Step-by-step explanation:
Answer:
8, 9, and 10
Step-by-step explanation:
see attachment
Answer:
(4, -6)
Step-by-step explanation:
A reflection across the y-axis means the point is equal but opposite distance from the y-axis. It begins at 4 units to the LEFT (negative) of the y-axis, so after the reflection, it should be 4 units the the RIGHT (positive) of the y-axis. This has no change on the y-value of the point, because no matter the y-value, the point will still be the same distance from the y-axis. Long story short, if you're reflecting across the y-axis, change the sign of the x-coordinate. If you're reflecting across the x- axis, change the sign of the y-coordinate. That's why the answer is (4, -6).
