Solve the inequality. Give the solution set in both interval and graph forms.-5(5x + 4) < -30x - 15
A. (-30, ?)
B. (1, ?)
C. (-?, 1)
D. (-?, -30)
Answer: C
Mathematics
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; R = {(x, y): 0 ? x ? 1, 1 ? y ? e}
A. 
B. 
C. 
D. 
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Find the reciprocal.
A. 8
B. 
C. 
D. 
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Use the given information to write an equation. Let x represent the number described in the exercise. Then solve the equation and find the number.Three-fourths of a number is 
. Find the number in lowest terms.
A. 
x = 
; 
B. 
+ x = 
; - 3
C. 
x = 
; 
D. 
x = 
; 
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Find the exact value of the expression. Do not use a calculator.cos (-3?) + sin 
A. -1 B. 0 C. -2 D. 2
Mathematics