Answer:
20
Step-by-step explanation:
Count the number of scores there are.
Answer:
S=1128
Step-by-step explanation:
S=ab=47x24=1128
The answer is c. 12 1/2 points because if he missed 121/2 questions on his test but still made a perfect score he had to make 121/2 points on the extra credit
Suppose we have a triangle ΔABC,
Length of AB = 14
Length of AC = 14
Angle ∠BAC = 122 degree
This triangle is isosceles triangle so, angle B = angle C = (180 - 122)/2 = 29
We know the two side and one angle of triangle ABC, here we use Sine Rule.
(In trigonometry, the law of sines, sine law, sine formula, or sine rule is an equation relating the lengths of the sides of a triangle (any shape) to the sines of its angles.)
According to the law,
Solve for a
a = 24.49 option C