Determine whether the lines through each pair of points are parallel, perpendicular, or neither.(-9, 9) and (7, 21); (-5, 7) and (1, 15)
A. parallel
B. perpendicular
C. neither
Answer: C
Mathematics
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A. -sec 65° B. sec 65° C. -sec 20° D. sec 20°
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Provide an appropriate response.If $25,000 is used to purchase an annuity consisting of equal payments at the end of each year for the next 8 years and the interest rate is 5% compounded annually, find the amount of each payment.
Fill in the blank(s) with the appropriate word(s).
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Given the side lengths of a right triangle, find the indicated value. adj = 7, hyp = 
Find tan ?.
A. tan ? = 
B. tan ? = 
C. tan ? = 
D. tan ? = 
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Round the number to the specified place value.9.454 to the nearest tenth
A. 9.4 B. 9.45 C. 9.5 D. 9.6
Mathematics