Each question is worth 4 points (100/25=4)
Therefore, when you divide 83 by 4, you get 20.75, as as he's aiming to get a B, this needs to be rounded up to 21.
Xio would need to get 21 questions right to get a B, hope this helps :)
Answer:
To find cosθ, use the formula for the area of a triangle i.e. AREA=1/2 x a x b x sinC.=> For this case: 15= 1/2 x 10 x 5 x sinC to find sinC.=> SinC = 3/5 thus, Arcsin(3/5)=+- 4/5 or +-0.8
To find the exact length of BC, use the cosine rule.=> c(sq)=a(sq)+b(sq)-2abCosC=> c(sq)=10(sq)+5(sq)-2(10)(5)(+-4/5)=> c(sq)= Square root of 205
Problem 1
The Blue Jays had the most passing yards. Circle the "passing" column, which is column 1. Then look for the largest value in this column. This largest value is 108 which belongs to the Blue Jays.
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Problem 2
The answer is choice B. To get this answer, you multiply every value inside the matrix by -5
Answer:
Put them all in your calculator and it will show you which is correct
