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marysya [2.9K]
3 years ago
14

Suppose logbx = logcx, where b ≠ c. Then the value of x can be

Mathematics
1 answer:
horrorfan [7]3 years ago
3 0

Not A: We can't have x=0 because \log0 is undefined for a logarithm of any base.

B is true: \log1=0 for any base.

Not C: If x=b^c, then \log_bb^c=c, but \log_cb^c=c\log_bc which only reduces to c if \log_bc=1. This can only happen if b=c, however, but we've assumed otherwise.

Not D: The reasoning for C not being correct is enough to rule out this possibility.

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Answer:

6

Step-by-step explanation:

3/4 ÷ 1/8

Copy dot flip

3/4 * 8/1

Rewriting

3/1 * 8/4

3/1 * 2/1

6

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3 years ago
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1.
Bad White [126]

first polygon

ext. angle=180°-120°

=60°

ext \: ang =  \frac{360}{n}

n=360°/60°

n=6

second polygon

n=2(6)=12

ext. ang= 360°/n = 360°/12° = 30°

int. ang = 180°-30°= 150°

answer is C

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5 boys play both hockey and volleyball (30-20-15=5)
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madreJ [45]
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3 years ago
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A variable needs to be eliminated to solve the system of equations below. Choose the
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Step-by-step explanation:

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4 0
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