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PtichkaEL [24]
3 years ago
15

WHAT IS THISDSSSSSSSSSSSSSSSSSSS

Mathematics
1 answer:
MaRussiya [10]3 years ago
8 0

Answer:

B

Step-by-step explanation:

Yes, it is. The set of rational numbers is closed for all the four operations, so x+y, x-y, x*y and x/y are rational too. And it is easy to demonstrate. A rational number can be expressed as a fraction of two integers. So, x can be expressed as a/b and y as c/d. Hence x+y = a/b + c/d = (ad+bc)/bd, which, as fraction of two integers, is rational.

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8 0
3 years ago
What additional information could be used to prove ΔABC ≅ ΔMQR using SAS? Select two options. m∠A = 64° and AB = MQ = 31 cm CB =
enyata [817]

Answer:

m∠R = 60° and AB ≅ MQ

m∠Q = 56° and CB ≅ RQ

Step-by-step explanation:

Given data :

Prove ΔABC ≅ ΔMQR using SAS

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3 0
3 years ago
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Eduardwww [97]

Answer:

i can only see 3

Step-by-step explanation:

4 0
3 years ago
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Watch help video Determine if the sequence below is arithmetic or geometric and determine the common difference ratio in simples
Helen [10]

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Step-by-step explanation:

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2 years ago
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Which expression is equivalent to 3i(9i +15)?<br> - 45 +9i<br> -27 + 452<br> 27 +452<br> 2722 + 452
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