Represent the following using variables.If Shanika runs 8y kilometers and then runs 9y - 1 kilometers more, how far has she run all together?
A. 17y - 1 km
B. -1y + 1 km
C. 8y - 1 km
D. 16 km
Answer: A
Mathematics
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A. ?
B. - 
C. -?
D. 4
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Provide an appropriate response. Select any two of the three trigonometric relationships for right triangles and explain how they would be sufficient for finding all six parts of a right triangle.
What will be an ideal response?
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Use the order of operations to simplify the expression.
A. 0
B. 
C. 
D. 2
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Find the exact value of the expression using a sum or difference identity.cos 255°
A. 
(
- 1)
B. - 
C. - 
(
- 1)
D. 
Mathematics