Solve the equation for x.
= -2
A. {-1}
B. {2}
C. {-2}
D. ?
Answer: B
Mathematics
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Find the parametric equations for the line tangent to the curve at the given point.r(t) = 
at r(0)
A. x = 2t, y =1 + 3t, z = -8t B. x = 2, y = 3 + t, z = -8 C. x = 0, y = 1 + t, z = t D. x = 2 + 2t, y = 3 + 3t, z = t
Mathematics
Graph the function.y = 4-x 
A. 
B. 
C. 
D. 
Mathematics
Solve.I am thinking of a whole number. My number, rounded to the nearest hundred, is 800. When the number is rounded to the nearest ten, it is 840. What numbers am I thinking of?
A. 850, 851, 852, 853, 854 B. 835, 836, 837, 838, 839 C. 840, 841, 842, 843, 844 D. 845, 846, 847, 848, 849
Mathematics
Solve.The square has sides of length 5x4 centimeters. Find its area. 
5x4centimeters
A. 25x16 sq cm B. 10x8 sq cm C. 25x8 sq cm D. 10x16 sq cm
Mathematics