Answer:
Option (C).
Step-by-step explanation:
Table represents the population of the owls in a park in different years and the quadratic regression equation that models the data of the table is,
y = -1.34x² + 10.75x - 11.3
Where y = number of owls
x = year
y = -1.34(9)² + 10.75(9) - 11.3
= -108.54 + 96.75 - 11.3
= -23.09
≈ -23
But Number of owls can't be negative.
Therefore, Option C. will be the answer.
Answer:
1) Length = 5.7
2) Midpoint = (0, 2)
3) Gradient = 1
Step-by-step explanation:
We are given the intervals as;
A(-2, -1) and B(2, 3)
1) Formula for length of interval is;
AB = √[(3 - (-1))² + (2 - (-2))²)]
AB = √(16 + 16)
AB = √32
AB = 5.66 ≈ 5.7
2) Midpoint of the interval is;
((-2 + 2)/2), (-1 + 3)/2
This gives; (0, 2)
3) gradient is the slope and it's given by;
m = (y2 - y1)/(x2 - x1)
m = (3 - (-1))/(2 - (-2))
m = 4/4
m = 1
Answer/Step-by-step explanation:
Given:
5(r - s)
r = 9
s = 1
Required:
Evaluate and simplify
Solution:
5(r - s)
Plug in the values of r and s
5(9 - 1)
= 5(8)
= 40
Answer:
70%
Step-by-step explanation:
Universal set = set of all first year students
P(U) = 1
P(M) = 0.5
P(B) = 0.4
P(M n B) = 0.2
The percent of first year college students take either mathematics or biology or both
P(M U B) = ?
P(M u B) = P(M n B') + P(M' n B) + P(M n B)
P(M n B') = P(M) - P(M n B) = 0.5 - 0.2 = 0.3
P(M' n B) = P(B) - P(M n B) = 0.4 - 0.2 = 0.2
P(M u B) = 0.3 + 0.2 + 0.2 = 0.7 = 70%
Answer:
Parks, then dental offices, and finally diners
Step-by-step explanation:
Parks = 50%
Diners = 20%
Dental offices = 30%
Order the place in order of decreasing probability.
If this answer is correct, please make me Brainliest!
