Answer:
Yuri is not correct.
Step-by-step explanation:
Given expression is q(x) = 6x³ + 19x² - 15x - 28
If 'a' is a root of the given function, then by substituting x = a in the expression, q(a) = 0
Similarly, for x = 
,
= 
= 
= 
= 
= 
≠ 0
Therefore, Yuri is not correct. x = can not be a root of the given expression.
The last one is the right answer
Answer:
D, B
Step-by-step explanation:
You can plug all the numbers in a calculator!! The larger the negative number, the more to the left it goes, while the larger the positive number, the more to the right it goes!
Option 1 and option 4 are inversely proportional.
Inversely proportional means when one variable increases the other decreases in proportion.
Option 1 is true. When the number of tractors increases, the time to plow a farm decreases.
Option 4 is also true. If height is too large, base area should be too less to equalize the area.
