Solve the number problem by finding the value of the unknown number.Seven times some number, added to 7, amounts to 39 added to the product of 3 and the number.
A. 32
B. 8
C. -8
D. -32
Answer: B
Mathematics
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Determine the symmetries of the curve.r = 6?
A. No symmetry B. x-axis, y-axis, origin C. x-axis only D. y-axis only
Mathematics
Solve the problem.In the first two weeks of school, Jill studied 13 hours and 13 hours, respectively. How many hours must she study during the third week to give her an average of 15 hours per week?
A. 13 hours B. 20.5 hours C. 19 hours D. 15 hours
Mathematics
Find the indicated trigonometric ratios.
Find tan A and cot A.
A. tan A = 
; cot A = 
B. tan A = 
; cot A = 
C. tan A = 
; cot A = 
D. tan A = 
; cot A = 
Mathematics
Graph the ellipse.9(x + 1)2 + 16(y - 1)2 = 144
A. 
B. 
C. 
D. 
Mathematics