Step-by-step explanation:
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Answer:
24
Step-by-step explanation:
Order of Operations: BPEMDAS
B - Brackets
P - Parenthesis
E - Exponents
M - Multiplication
D - Division
A - Addition
S - Subtraction
Step 1: Write expression
6 · [20 ÷ (15 - 10)]
Step 2: Bracket Parenthesis
6 · [20 ÷ 5]
Step 3: Brackets
6 · 4
Step 4: Multiply
24
Answer:
see explanation
Step-by-step explanation:
The n th term of an arithmetic sequence is
= a₁ + (n - 1)d
(a)
Given a₁ = - 2 and a₄ = 16, then
a₁ + 3d = 16 , that is
- 2 + 3d = 16 ( add 2 to both sides )
3d = 18 ( divide both sides by 3 )
d = 6
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(b)
Given
= 11998 , then
a₁ + (n - 1)d = 11998 , that is
- 2 + 6(n - 1) = 11998 ( add 2 to both sides )
6(n - 1) = 12000 ( divide both sides by 6 )
n - 1 = 2000 ( add 1 to both sides )
n = 2001
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