It -2 because a negative times a positive is a negative
Answer:
The theater has 32 rows
Step-by-step explanation:
The rule of the sum of n terms of an arithmetic sequence is S
=
(a + l), where
- n is the number of the terms
∵ The number of seats per row follows an arithmetic sequence
∵ The first row has 26 seats
∴ a = 26
∵ The last row has 150 seats
∴ l = 150
∵ The theater seats are 2,816
∴ S
= 2,816
→ Substitute these values in the rule of the sum above to find n
∵ 2,816 =
(26 + 150)
∴ 2,816 =
(176)
∴ 2,816 = 88n
→ Divide both sides by 88
∴ 32 = n
∵ n represents the number of the rows
∴ The theater has 32 rows
Answer:
Equation is | x-20 | = 2
Min = 18
Max = 22
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Explanation:
x = number of strawberries
|x-20| = distance from x to 20 on the number line.
Absolute value is used to ensure the distance is never negative. This distance represents how far off from 20 we are.
For instance, let's say the package had x = 17 strawberries
|x-20| = |17-20| = |-3| = 3
We're 3 units away from the goal of 20
--------------------
Setting |x-20| equal to the error of 2 will help us find the min and max
|x-20| = 2
x-20 = 2 or x-20 = -2
x = 2+20 or x = -2+20
x = 22 or x = 19
The smallest amount is 19 strawberries, while the most is 22. This represents the min and max respectively.
No. A rectangle MUST have 2 pairs of parallel sides and all equal angles.
A rhombus has 2 pairs or parallel sides with 2 pairs of equal angles.
Answer:
elimination
Step-by-step explanation: