Find the cross product and determine whether the proportion is true or false.
= 
A. 200 ? 49; false
B. 30 = 30; true
C. 70 = 70; true
D. 
? 560; false
Answer: C
Mathematics
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Provide an appropriate response.If x3 ? f(x) ? x for x in [-1, 1], find 
f(x) if it exists.
A. -1 B. 0 C. 1 D. Does not exist
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Find the volume of the specified solid. Use 3.14 as the approximate value of ?, and round your answer to the nearest whole number.A triangular pyramid with base area 23 ft2 and height 8 ft
A. 92 ft3 B. 184 ft3 C. 61 ft3 D. 59 ft3
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Refer to the graph of the linear function defined by 
or the graph of the linear functions defined by 
and 
to solve the equation or inequality.
y1 > y2
A. (-?, ?) B. (5, ?) C. ? D. (-2, ?)
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Solve the equation by the method of your choice. Simplify irrational solutions, if possible.4x2 + 8x + 1 = 0
A. 
B. 
C. 
D. 
Mathematics