in a right-triangle, like in the 1st Quadrant, cosine and sine are complements, so then
sin(x) = cos(90° - x)
cos(x) = sin(90° - x)
for this case, sin(<u>90°</u>) = cos(90° - <u>90°</u>), or just cos(0°) = 1.
Answer:
Exact Form:
x = 9/2
Decimal Form:
x = 4.5
Mixed Number Form:
x = 4 1/2
1: C
2:A
Step-by-step explanation:
Dialation is just the multiplucation of the size. If the original point is 2, 4 dialated to 2 is would be 4, 8. Basiccly just multiply by 2 in this example.
. We have a number, 5, for y, which we can substitute (plug-in) for y in the equation of the line and solve for x.
