1) cos (150°)=- cos(180°-150°) = - cos(30°) and - cos30° = - √(3) / 2
sin(150°) = sin(180°-150°) =sin30. and sin30° = 1/2
Then : 5/2(cos 150° + i sin 150°) becomes : 5/2{(-√(3) /2 + I (1/2)]
OR 5/4( - √3 + i)
Answer:
$6.69
Step-by-step explanation:
Since we know the total cost of 5 pairs of gloves, all we have to do to find the unit price is divide the total cost by how many gloves were are being sold:
33.45 / 5 = 6.69
Therefore, one pair of gloves costs $6.69
Hope this helps :)
What is the shape the question asks
Answer:
true
Step-by-step explanation:
Answer:
Prob = 5.6%
Step-by-step explanation:
If every multiple choice question just have 1 correct response, the probability that the first question is correct is 1/3 and the probability that the second question is correct is 1/6. Because the first question have 3 possible answers and the second question have 6 possible answers.
So, the probability that both responses are correct is calculated as a multiplication between the both probabilities as:

Then, if the answer need to be as a percentage rounded to one decimal place accuracy, we need to multiply by 100% and rounded as:
Prob = 0.0555*100%=5.6%