Translate the sentence to an equation then solve.The product of 3 and x is 7.
A. 3x = 7, x = 
B. 
= 7, x = 21
C. 3x = 7, x = 4
D. 3x = 7, x = 
Answer: D
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For the curve r(t), find an equation for the indicated plane at the given value of t.r(t) = (4t sin t + 4 cos t)i + (4t cos t - 4 sin t)j + 8k; normal plane at t = 5.5?.
A. x - y + z = -4 B. y = -4 C. x + y + z = -4 D. y = 4
Find the LCD of the given fractions by prime factorization.
, 
and 
A. 6 B. 30 C. 15 D. 10
Complete the table and use the result to find the indicated limit.If f(x) = x2 - 5, find 
f(x).
A. 
; limit = -3.0
B. 
; limit = -15.0
C. 
; limit = ?
D. 
; limit = -5.0
Name the angle in five different ways.
A. ?LMN, ?N, ?NML, angle NML, or angle N B. ?M, ?LMN, ?NML, angle NML, or angle LMN C. Angle L, angle LMN, angle NML, ?LMN, or ?L D. ?LNM, ?NLM, ?M, angle LMN, or angle M