The answer is 20. just multiply, 4/7*35=20.
Answer:
We must prove that (c+a)(c+d) = (b+c)(b+d)
- Let us use principles from mathematical induction

- a=bx , b=cx, c=dx
- a+c = b + c
- c +d = b + d
- Such that (a+c)(c+d)=(b+c)(b+d)
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The answer is C because 4 + 15 = 19.
Hi,
A is the answer as : -2+2 = 0 and 5 -5 = 0
Answer:
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Step-by-step explanation: