Answer:
D. Malik substituted 60 for y instead of x.
Step-by-step explanation:
Answer:
Well this is a very strange question indeed since different personalities can result in different reactions to each situation, but since the passage says that laughter is contagious, I would believe that the answer be B.
Step-by-step explanation:
Answer:
56
Step-by-step explanation:
7((9+4)-(12-7))
7(13-5)
7×8
Let r = the distance from P(-2,-4) to Q(-4,-2);
<span>r = √{(-4 - -2)² + (-2 - -4)²} </span>
<span>r = √{-2² + 2²} </span>
<span>r = √{4 + 4} </span>
<span>r = √8 </span>
<span>Let q = the distance from P(-2,-4) to R(7,-1): </span>
<span>q = √{(7 - -2)² + (-1 - -4)²} </span>
<span>q = √{9² + 3²} </span>
<span>q = √{81 + 9} </span>
<span>q = √90 </span>
<span>Let p = the distance from Q(-4,-2) to R(7,-1): </span>
<span>p = √{(7 - -4)² + (-1 - -2)²} </span>
<span>p = √{11² + 1²} </span>
<span>p = √{121 + 1) </span>
<span>p = √122 </span>
<span>If PQR is a right triangle, then: </span>
<span>p² = q² + r² </span>
<span>122 = 90 + 8 </span>
<span>122 ≠ 98 </span>
<span>Therefore, it is not a right triangle.</span>