Answer: C, 3 HOURS
Step-by-step explanation:
she canoed for 1 hour and windsurfed for 2 hours
Actually, the answer is not A, if you're saying A is the first choice above. That's incorrect. You will need to use the Geometric mean for right triangles here to figure out what the value of a is. We will use this form:

. We have a value for YZ of 3; side a is XZ. That means in order to solve this we need WZ, which we can find using pythagorean's theorem. 3^2 + 4^2 = c^2 and 9 + 16 = c^2 and c = 5. Now we fill in accordingly:

. Cross-multiply to get 3XZ=25 and side XZ is

. XZ is 25/3 and YZ is 3, so 25/3 - 3 = XY. That means that XY (side a) = 16/3 or 5 1/3, choice B, or the second one down.
1/8 5/6 3/8
Make sure that in order to compare and rank them from least to greatest, you ned to first see that the denominator is the same.
1/8=3/24 5/6=20/24 3/8=9/24
1/8<3/8<5/6
Therefore, 5/6 is the greatest and also the farthest that Carlos ran.
<span>B. -6y = 12 is the asnwer</span>
6x+3y=-9
3y = -6x - 9
y = -2x - 3 ; This line has slope = -2
Parallel lines, slope is the same so the slope of a line that is parallel to
6x+3y = - 9 is also -2
Answer
-2