Write the sum without sigma notation and evaluate it.
A. 2 sin ? + 2 sin 
+ 2 sin 
+ 2 sin 
= 2 + 
+ 
B. 2 sin ? + 2 sin 
+ 2 sin 
+ 2 sin 
= 6 + 
C. 2 sin ? + 2 sin 
= 
D. 2 sin ? + 2 sin 
+ 2 sin 
+ 2 sin 
= 1 + 
Answer: A
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A. ?Circle graphs show proportions/percentages of each category in order to make comparisons between categories. B. ?It uses categories, while bar graphs use numerical intervals. C. ?They both show the same information. D. ?The circle graph is generally easier to construct. E. ?The bar graph does not convert frequency information into percentages.
Solve the problem.A square has an area of 49 square inches. If the same amount is added to the length and removed from the width, the resulting rectangle has an area of 45 square inches. Find the dimensions of the rectangle.
A. 3 in. by 4 in. B. 5 in. by 10 in. C. 4 in. by 9 in. D. 5 in. by 9 in.
Find the unknown value.17 is 2% of what number?
A. 8500 B. 34 C. 85 D. 850
The equation of a hyperbola is given. Match the equation with its graph.9y2 - 4x2 = 36
A. 
B. 
C. 
D. 