Solve the problem.Bengisu was pregnant 273 days and 263 days for her first two pregnancies. In order for Bengisu's average pregnancy to equal a national average of 266 days, how long must her third pregnancy last?
A. 267 days
B. 241 days
C. 268 days
D. 262 days
Answer: D
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Rewrite the following as indicated.3.5 (Write as a percent.)
A. 35% B. 350% C. 0.35% D. 0.0035%
Solve the problem.An experimental model for a suspension bridge is built in the shape of a parabolic arch. In one section, cable runs from the top of one tower down to the roadway, just touching it there, and up again to the top of a second tower. The towers are both 9 inches tall and stand 60 inches apart. Find the vertical distance from the roadway to the cable at a point on the road 9 inches from the lowest point of the cable.
A. 3.24 in. B. 0.61 in. C. 0.81 in. D. 1.01 in.
The middle term of the trinomial has been rewritten. Now factor by grouping.12x2 - 9x + 8x - 6
A. (3x + 2)(4x - 3) B. (12x - 2)(x + 3) C. (3x - 2)(4x + 3) D. (12x + 2)(x - 3)
Express in terms of i.
A. 3i
B. -3
C. 3
D. -3i