Answer:
Volume = 42 in.²
Step-by-step explanation:
Volume of the triangular prism = ½×b×h×l
where,
b = 4 in.
h = 3 in.
l = 7 in.
Plug in the values
Volume = ½ × 4 × 3 × 7
Volume = 42 in.³
Step-by-step explanation:
5x = 15
x = 3
3(3)+ 2y = 9
9 + 2y = 9
2y = 0
y = 0
(3,0)
Answer:
y = 19
Step by step explanation:

A simple diagram will show you the intersection of altitudes is in the 2nd quadrant. It must have x-coordinate -2, as the altitude to the "base" y=10 must be the vertical line through (-2, 4).
The appropriate choice is ...
... C: (-2, 12)