Answer:
C
Step-by-step explanation:
-6 + 5 = -1
Answer:
The values are calculated with the help of table.
Step-by-step explanation:
We are given the following information in the question:
A table is shown showing trees on two different plots of land which are tested for disease.
Tree: 1 2 3 4 5 6 7
Plot: A A B B B A B
Disease: Y N Y Y Y N N
We have to find:
Calculating from the table, we can fill the values as:
Plot A Plot B
Disease Present 1 3
Disease not Present 2 1
Answer:
- (b - 9)(b + 8)
Step-by-step explanation:
72 + b - b² ← factor out - 1 from each term and rearrange into standard form
= - (b² - b - 72) ← factor the quadratic
Consider the factors of the constant term (- 72) which sum to give the coefficient of the b- term (- 1)
The factors are - 9 and + 8
Use these factors to split the b- term
b² - 9b + 8b - 72 ( factor the first/second and third/fourth terms )
b(b - 9) + 8(b - 9) ← factor out (b - 9) from each term
(b - 9)(b + 8)
Then
72 + b - b² = - (b - 9)(b + 8)
Answer:
D. (2, -1)
Step-by-step explanation:
Answer:
Step-by-step explanation:
