Use a graphical method to solve the system. Give x- and y-coordinates correct to the nearest hundredth.y = ln(3x - 2)x2 + 3y2 = 7
A. (1.73, -1.16), (0.74, 1.47)
B. (0.77, 1.46), (-0.59, -1.49)
C. (5.25, 2.62)
D. (0.74, -1.47), (1.73, 1.16)
Answer: D
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Use front end rounding to round the number.The average salesman at ABC Corporation earned $77,862 last year.
A. $70,000 B. $80,000 C. $77,000 D. $87,000
Find the unit tangent vector T and the principal unit normal vector N. r(t) = (4 + t)i + (4 + ln(sec t))j - 9k, -?/2 < t < ?/2
A. T = (cos t)i + (sin t)j; N = (- sin t)i + (cos t)j B. T = (cos t)i - (sin t)j; N = (-sin t)i - (cos t)j C. T = (-cos t)i - (sin t)j; N = (sin t)i - (cos t)j D. T = (-cos t)i - (sin t)j; N = (-cos t)i + (sin t)j
Factor completely. If the polynomial cannot be factored, say it is prime.x2 + 2x + 1
A. (x + 1)2 B. (x + 1)(x - 1) C. (x + 2)(x - 2) D. (x - 1)2
Write the best-fit linear model for the data.The ages and lengths of several animals of the same species are recorded in the following table: 
Find the linear function to model this data.
A. y = 1.03x - 2.18 B. y = 0.93x + 2.18 C. y = 0.93x - 1.18 D. y = 2.18x - 1.03