Answer:
-12xf+49xg
Step-by-step explanation:
2xf(-6)-7xg(-7)
-2xf*6+7xg*7
Gives you -12xf+49xg
40 out of 250 students speak French: 40 / 250 = 0.16
Multiply the number of students surveyed by 0.16:
30 x 0.16 = 4.8
Round up to 5 students.
Answer 5 students
Answer:
time= half hour= 30 min
words = 450
number of words in 30 min= 450
number of words in 1 min= 450/30
number of words in 7 min = 450/30 x 7
= 105 words
Step-by-step explanation:
Answer:
![3b^3y-6b^2cy+3c^3y-4b^3+8b^2c-4c^3](https://tex.z-dn.net/?f=3b%5E3y-6b%5E2cy%2B3c%5E3y-4b%5E3%2B8b%5E2c-4c%5E3)
Step-by-step explanation:
The given expression is
.
We expand the first two parenthesis to get,
![(b^3-2b^2c+c^3)(3y-4)](https://tex.z-dn.net/?f=%28b%5E3-2b%5E2c%2Bc%5E3%29%283y-4%29)
We now expand again to get,
![3y(b^3-2b^2c+c^3)-4(b^3-2b^2c+c^3)](https://tex.z-dn.net/?f=3y%28b%5E3-2b%5E2c%2Bc%5E3%29-4%28b%5E3-2b%5E2c%2Bc%5E3%29)
This will give us
![3b^3y-6b^2cy+3c^3y-4b^3+8b^2c-4c^3](https://tex.z-dn.net/?f=3b%5E3y-6b%5E2cy%2B3c%5E3y-4b%5E3%2B8b%5E2c-4c%5E3)
The correct answer is false. The symmetry of a hyperbola with a center at (h, k) do not occurs only at y = k and x = h. The axis of symmetry occurs through each focus making right angles to the directrix. The axis of symmetry is a line that divides a graph or something into two congruent figures.