Change the word statement to an equation. Use x as the variable.The sum of twice a number and 3 is 54.
A. 6x = 54
B. 2x + 3 = 54
C. 6x = 54x
Answer: B
Mathematics
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Solve. Use the principle of square roots.x2+ 10x + 25 = 28
A. -5 + 2
, -5 - 2
B. 2
, -2
C. 2
- 5, 2
+ 5
D. -5 + 2
, -5 - 2
Mathematics
Solve.The product of 5 and a number equals 55. Find the number.
A. 11 B. 12 C. 275 D. 50
Mathematics
Find an for the given geometric sequence.a2 = -10, r = -2
A. an = 5(-2)n - 1 B. an = -10(-2)n - 1 C. an = 5(-2n) D. an = 5(-2)n
Mathematics
Use the appropriate sum or difference identity to write the given expression as a function of x alone.cos (x - ?)
A. -sin x B. sin x C. cos x D. -cos x
Mathematics