Đưa dạng toàn phương về dạng chính tắc q(x, y, z) = 2xy + 4xz + y2 − 4yz + 4z2
.
Tìm cơ sở q-chính tắc. Cơ sở này có phải là cơ sở trực giao không?

13.33%

say 50 oranges, then 100 apples

80 are red, 20 are yellow

total fruit = 150

20chances out of 150 for yellow

20/150 = 13.33%

answer: all the values are within because it has a pattern that repeats from -6 to 4.

good luck!

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.