codeyhatch142
01.07.2019 •
Mathematics
Simplify the expression.
twelve to the power of log base twelve of twenty four.
a.) 24
b.) 288
c.) 3456
d.) 12
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Ответ:
The correct answer option is A) 24.
Step-by-step explanation:
We are given the following log expression and we are to simplify it:
Here, we are going to apply the rule for solving a log problem:
So if , then it would be equal to 24.
Ответ:
Ответ:
answer:
1702.5
step-by-step explanation:
the n th term of an arithmetic progression is
= a + (n - 1)d
where a is the first term and d the common difference, hence
a + 5d = - 5 → (1) and
a + 9d = 21 → (2)
subtract (1) from (2) term by term
4d = 26 ( divide both sides by 4 )
d = = 6.5 ← common difference
substitute d = 6.5 into (1 )
a + 32.5 = - 5 ( subtract 32.5 from both sides )
a = - 37.5 ← first term
the sum to n terms of an arithmetic progression is
= [ 2a + (n - 1)d ], hence
= 15 [ - 75 + (29 × 6.5) ]
= 15 [ - 75 + 188.5 ]
= 15 × 113.5
= 1702.5