Answer:
2 hours at 15mph
4 hours at 4mph
Step-by-step explanation:
Answer:
The answer to your question is: the first option - 9/ 
Step-by-step explanation:
Process
cosФ = adjacent side / hypotenuse
-1/9 = adjacent side / hypotenuse
adjacent side = -1 hypotenuse = 9
c² = a² + b²
b² = c² - a²
b² = 81 - 1
b =
b = opposite side
But b is negative because we are in the third quadrant.
b = -
Finally csc Ф = hypotenuse / opposite side
csc Ф = - 9 / 
Answer:
21
Step-by-step explanation:
because it is only part of the bottom one so it should be 21 sorry if it wrong
If you do the division, you would end up with the answer letter D, 1/8.
9514 1404 393
Answer:
A, C, E
Step-by-step explanation:
The proportional relations on the list are ...
- feet and inches
- flour and bread
- gallons and cost
We often model running distance and time as proportional, but a marathon is a long enough run that speed is rarely constant. It usually decreases over the course, and may increase near the end.
__
A relationship is proportional if there is a constant multiplier that relates the output to the input.
_____
<em>Additional comment</em>
For the relations listed above, the constants are ..
- the conversion factor between feet and inches
- the amount of flour in a bread recipe
- the price of a gallon of gas
For running time and distance, the multiplier is <em>speed</em>. The relation is only proportional if speed is a constant.