Answer:
No inverse function: (a), (b), (c)
Inverse function exists: (d)
Step-by-step explanation:
The graph of h(x) = (x - 2)^2 + 3 is a parabola that opens upward and has vertex at (2, 3). If the entire graph is drawn, and the horizontal line test then applied, h(x) would not have an inverse, because the horizontal line would intersect the parabolic graph twice.
Note that if we restricted the domain to x ≥ 2, the resulting graph would pass the horizontal line test. This would also be true for x ≥ 3, x ≥ 4, and so on. Not so for (a) x < 1. False for x > -5. True for x < 3. True for x > 4.
No inverse function: (a), (b), (c)
Inverse function exists: (d)
Step-by-step explanation:
42 boys can count.
the probability that any pupil is a boy and can count?
0.42
Answer:
weak negative
Step-by-step explanation:
we know that
The correlation coefficient r measures the direction and strength of a linear relationship. It can take a range of values from +1 to -1.
Values between -0.5 and -1.0 or 0.5 and 1.0 indicate a strong negative/positive linear relationship
Values between -0.3 to -0.1 or 0.1 to 0.3 indicate a weak negative/positive linear relationship
In this problem
The correlation coefficient for the data is −0.31
therefore
Is a weak negative correlation
This is the concept of volumes of solid figures;
To calculate for the volume of material required we calculate for the volume of the pyramid;
volume of the pyramid is given by:
volume=(length*width*height)/3
but in our case the base of the pyramid is square, therefore:
length=width=2 ft
height=6 ft
hence;
volume=(2*2*6)/3
volume=8 ft^3
The answer is 8 ft^3
Answer:
Step-by-step explanation:
He uses (2/3)(12 eggs) = 8 eggs.
He has (12-8), or 4, eggs left.