Marco went to the cafeteria to buy chicken sandwiches, C, worth $2.00, and hamburgers, h, worth $2.50.
2 answers:
You might be interested in
Answer:
Step-by-step explanation:
we have the ordered pairs
(0,0) and (-1/2,-3)
In this problem we have a proportional relationship, because the line passes through the origin
A proportional variation can be expressed in the form or
Find the value of the constant of proportionality k
For x=-1/2, y=-3
---->
therefore
The linear equation is equal to
substitute the value of k
9514 1404 393
Answer:
36.6 km
Step-by-step explanation:
We assume the initial bearing of the boy is 35°. Then he will make a 90° turn to a heading of 125°. A diagram shows the distance of interest is the hypotenuse of a right triangle in which 35° is the angle opposite the side of length 21 km.
The relevant trig relation is ...
Sin = Opposite/Hypotenuse
sin(35°) = (21 km)/XZ
XZ = (21 km)/sin(35°) ≈ 36.61 km
The distance from X to Z is about 36.61 km.
_____
The attached diagram has the angles measured in the usual way for a Cartesian plane: CCW from the +x axis. This will correspond to bearing measures if we relabel the axes so that +x is North, and +y is East.
