Answer:
Option B.
Step-by-step explanation:
If the value of function is 0 at x=c, then c is a root or zero of the function. It means the graph of function intersect x-axis at its zeroes.
From the given table it is clear that the value of function are
x | f(x) | Sign
2.0 | 2.8 | Positive
2.5 | 1.1 | Positive
3.0 | –0.8 | Negative
3.5 | –1.2 | Negative
4.0 | –0.3 | Negative
4.5 | 0.7 | Positive
The sign of values of function changes in interval 2.5-3.0 and 4.0-4.5.
It means, the graph of function must intersect x-axis in interval 2.5-3.0 and 4.0-4.5. So, the zeros of the function lie between 2.5 and 3.0 and between 4.0 and 4.5.
Therefore, the correct option is B.
Answer:
=x2y−2xy2+7y2z
Step-by-step explanation:
Simplify
Let's simplify step-by-step.
4x2y+3y2z−2xy2−3x2y+4y2z
=4x2y+3y2z+−2xy2+−3x2y+4y2z
Combine Like Terms:
=4x2y+3y2z+−2xy2+−3x2y+4y2z
=(4x2y+−3x2y)+(−2xy2)+(3y2z+4y2z)
=x2y+−2xy2+7y2z
Answer:
=x2y−2xy2+7y2z
Answer:
At midnight, the temperature was 43.7 degrees above 0, and in the morning, it was 3.6 degrees below 0
Step-by-step explanation:
At midnight, the temperature was 43.7°F. In the morning, the temperature was −3.6°F.
We can say that −3.6 lie on the LHS of a number line while 43.7 lie on RHS of the number line and 0 at the mid.
43.7°F is above 0 and 3.6°F is below 0.
At midnight, the temperature was 43.7 degrees above 0, and in the morning, it was 3.6 degrees below 0
. Hence, the correct option is (d).
V(cylinder) = base*height =(πr²)h = π*4²*6=96π
Answer: B. 96π units³.
Gradient
= (y2-y1)/(x2-x1)
= (-9-(-5))(-2-(-4))
= (-4)(2)
= -8
