Answer:
A.
Step-by-step explanation:
Take a look at what happens when squaring either of these...

Notice a couple of patterns.
1. The last term has a positive coefficient. That rules out answer choices C and D.
2. The coefficient of the middle term is either
. So what are <em>a</em> and <em>b</em>? <em>a</em> is the square root of the x^2 term and <em>b</em> is the square root of the y^2 term.

The middle coefficient needs to be either +30 or -30. The answer is choice A.
I believe the answer to your question is 11650
Answer: 0.18 is your answer
Step-by-step explanation:
A disjunction is false if both parts of the disjunction are false; otherwise, it is true
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Choice A
4-3=2 is false
6*3=9 is false
both parts are false, so overall the entire disjunction is false
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Choice B
5*6=30 is true
3+4=7 is true
Neither part is false, so overall the entire thing is true
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Choice C
8+3=11 is true
5*4=23 is false
While second piece is false, the overall disjunction is true. The first part (true) makes the whole thing true.
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Choice D
7+6=13 is true
5*2=10 is true
Neither part is false, so overall the entire thing is true
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In summary, we have
A. False
B. True
C. True
D. True
Making choice A the only answer that is false. So choice A is the final answer
Cross multiply or divide 1&4 and 2&3