You can basically plug in the numbers for x and y into the options:
A. y/x = 3
12/4 = 3, so this one is right
B. xy = 3
12*4 = 48, so this is wrong
C. x = 3y
3*12 = 36, which is not x (4), so this is wrong
D. y = 3x
3*4 = 12, which is y (12), so this is right
So, A and D are right
Answer:
(16/3)π ft
Step-by-step explanation:
The arc length formula is s = rФ, where Ф is the central angle in radians.
Here the central angle is 60° so we must convert this to radians:
60° π π
----- * -------- = ----- radians
1 180° 3
Thus, the arc length of interest is s = (16 ft)(π/3 rad) = (16/3)π ft
For #4, break up what's under the radical sign into 100 * 2, and then break the n^8 into n^2*n^2*n^2*n^2 so it's easy to see how to pull out what you need to. 100 is a perfect square: 10*10, so you can pull that out, leaving the 2, and you can also pull out 4 n's, so for #4, the answer is 10n^4 sqrt2.
#5 breaks up into 9*7, with 9 being the perfect square 3*3. Break the n^9 up into n^2*n^2*n^2*n^2*n. So you can pull out the 3 and 4 of the n's, which gives you 3n^4sqrt7n
Answer:
2
3
RESULT
In the slope-intercept form you use the slope of the line and the y-intercept to express ... The m-value, the slope, tells us that for each step to the right on the x- axis we move 2 ... the origin has a y-intersect of zero, b = 0, and represents a direct variation. ... form · Parallel and perpendicular lines · Scatter plots and linear models.
750 / 9 = 83.333333
83.33333 * 24 = 2000
100 / 6 = 16.66666667
16.6666667 * 24 = 400
2000 - 400 = 1600 gallons more than the kidney
