<h2>Hey there! </h2>
<h3>The answer is: </h3>
<h3>Option 'B' </h3>

<h2>BECAUSE root 19 is irrational. </h2>
<h2>Hope it help you </h2>
Answer:
√7 ≈ 2.646
Step-by-step explanation:
The law of cosines is applicable. It tells you ...
c² = a² + b² - 2ab·cos(C) . . . . . where a, b, c are triangle side lengths, and angle C is opposite side c.
Filling in the given information, you have ...
c² = 2² + 3² - 2·2·3·cos(60°) = 4 + 9 - 12·(1/2) = 7
c = √7 ≈ 2.646
The length of the third side is √7, about 2.646 units.
Answer:
2n+7
Step-by-step explanation:
7 more than twice n would be:
2n+7
this is because twice n would mean that you'd multiply n by 2, and by 7 more than they mean you would add 7 to that.
Fraction of his error= 87.50/ $125
=0.7
Percentage= 0.7 * 100
= 70%