3xy^2 + 3yx^2 - 3xy....GCF is 3xy
3xy(y + x - 1) <==
Answer:
3/4 of the eggs are not rotten.
Step-by-step explanation:
a dozen = 12 eggs
3+3+3+3 = 12
3x4 = 12
1/4 = 3/12
2/4 = 6/12
3/4 = 9/12 <--- |
4/4 = 12/12 |
12-3 = 9 ---------|
SO 3/4 eggs are not rotten
Answer:
if you have a vertical line with 0 in the middle, the number above zero will be positive numbers That will be above sea level. The number below the zero will be negative numbers which are below sea level.
so the 2.5 below sea level will be in the negative side (below the zero) between -2 and -3.
I hope this can help.
B^2c^-1
-4^2(2)^-1
-4^4^-1
-4^1/4
1 + i
Question 9
The point (30,15) means that x = 30 and y = 15 pair up together.
Similarly, (40,25) means we have x = 40 and y = 25 paired up.
Apply the slope formula to get
m = (y2-y1)/(x2-x1)
m = (25-15)/(40-30)
m = 10/10
m = 1
The slope is 1.
It tells us that each time y goes up by 1, x is also increasing by 1.
slope = rise/run = 1/1
rise = 1, run = 1
The rise is the change in y, the run is the change in x.
This means the plant's height (y) goes up by 1 cm each time the number of days (x) goes up by 1.
In short, the plant's height is increasing by 1 cm per day
<h3>
Answer: Choice D</h3>
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Question 10
y varies directly with x, so y = kx for some constant k.
We're then told that x = -1 and y = -2 pair up together.
Let's find k based on those items
y = kx
y/x = k
k = y/x
k = -2/(-1)
k = 2
So y = kx becomes y = 2x
Then we're asked to find x when y = -4
y = 2x
y/2 = x
x = y/2
x = -4/2
x = -2
<h3>
Answer: Choice D</h3>
