3 years ago

{-x+2y=7

Mathematics

1 answer:

monitta3 years ago

8 0

The answer is (-5,1)

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HELP!!!!!!!!!!!!!!!!!!

lawyer [7]

Your answer is C. 3 units left and 2 units up. This is because this distance between 1 and -2 is 3 units, and the distance between 3 and 5 is 2 units. The scale factor would be 1.75, because 7 ÷ 4 = 1.75
I hope this helps

8 0

3 years ago

A ship sailing parallel to shore sights a lighthouse at an angle of 14° from its direction of travel. After traveling 4 miles fa

timama [110]

Answer:

C. 6.19 mi

Step-by-step explanation:

The angle between the two ship locations as viewed from the lighthouse is ...

23° -14° = 9°

This is opposite the known side of the triangle: 4 miles. The unknown side, the distance to the lighthouse from the second position, is opposite the 14° angle in the triangle. The Law of Sines can be used to find the distance (d) of interest:

d/sin(14°) = (4 mi)/sin(9°)

d = (4 mi)(sin(14°)/sin(9°)) ≈ 6.1859 mi

The ship is 6.19 miles from the lighthouse at the second sighting.