Perform the indicated operations using the laws of exponents. Express the result using positive exponents.
A. 
B. 
C. 
D. 
E. 
Answer: D
Mathematics
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Solve the formula for the specified variable.P = s1 + s2 + s3 for s3
A. s3 = P - s1 - s2 B. s3 = s1 + s2 - P C. s3 = P + s1 + s2 D. s3 = s1 + P - s2
Mathematics
Find the first term a1 and the common difference d of the arithmetic sequence.
, 
, 
, 
, . . .
A. a1 = 
, d = 
B. a1 = 
, d = 
C. a1 = 
, d = 
D. a1 = 
, d = 
Mathematics
Find the equation of the line described, and express your answer in the specified form.Perpendicular to the line -5x + 7y = 54; passes through the point (-8, 9); standard form
A. 7x - 5y = -11 B. 7x - 5y = 54 C. -5x - 7y = -11 D. 7x + 5y = -11
Mathematics
For the given parabola, use the discriminant to determine the number of x-intercepts.y = -2x2 - 5x + 3
A. two x-intercepts B. no x-intercepts C. one x-intercept
Mathematics