devinfolds
03.04.2021 •
Mathematics
Complete the proof.
Given: AB∙BP=CB∙BM
Prove: ∆CBA~∆PBM
Statements
Reasons
AB∙BP=CB∙BM
5.
ABCB=??
6. Property of ?
∠CBA≅∠???
7.
∆CBA~∆PBM
8.
Solved
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Ответ:
A does not. You are getting something like 15^9/5, as an example, which is very much larger than 3^9. So A is wrong.
B is correct. (15/5)^x = 3^x Both 15 and 5 are inside the brackets.
C is correct. 3^1 * 3^(x - 1) = 3^(x - 1 + 1) = 3^x
D is correct (15^x)/5^x = (15/5)^x = 3^x
E is not correct. It is not a general case and the base number is 3 not x.
F is not correct. 3^1*3^(x + 1) = 3^(x + 2) not correct.
B C and D are correct. The rest are not.