Find the error in the traditional algorithm method:
??
A. ?Multiplication and addition error (9 × 3 + 3)
B. ?Forgot to add carried number (second column)
C. ?Added total incorrectly
D. ?Place-value error in the second row of computation
E. Place-value error in the first? row of computation
Answer: D
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Graph the hyperbola.7x2 - 4y2 = 56
A.
B.
C.
D.
Solve the problem.A roller coaster rises 140 feet vertically over a span of 460 feet. What is it's slope?
A. 140
B.
C. 460
D.
Find the general solution for the differential equation. + 2xy = 21x
A. y = + 2x + Ce-x2
B. y = + Ce-x2
C. y = + Cex2
D. y = 21 + Cex2
Express the unit vector as indicated.The unit vector u = (cos ?)i + (sin ?)j for ? = - obtained by rotating i ? radians about the origin. Express u in the form ai + bj.
A. i -
j
B. i +
j
C. i +
j
D. i -
j