State the phrase as a mathematical expression. Use x to represent the variable.A number increased by seven
A. x - 7
B. 7x
C. 7
D. x + 7
Answer: D
Mathematics
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Subtract.4 - 3
A. 3 B. 0 C. 1 D. 2
Mathematics
Use the horizontal line test to determine whether the function is one-to-one.
A. Yes B. No
Mathematics
Use radical notation to write the expression. Simplify if possible.2561/4
A. 1024 B. 16 C. 4 D. 64
Mathematics
Rewrite the system of inequalities, adding slack variables or subtracting surplus variables as needed.2x1 + x3 ? 562x1 + x2 ? 34 x1 + x3 ? 28
A. 2x1 + x3 - s1 = 56 2x1 + x2 + s2 = 34 x1 + x3 + s3 = 28 B. 2x1 + x3 - s1 = 56 2x1 + x2 - s2 = 34 x1 + x3 - s3 = 28 C. 2x1 + x3 + s1 = 56 2x1 + x2 + s2 = 34 x1 + x3 + s3 = 28 D. 2x1 + x3 + s1 = 56 2x1 + x2 - s2 = 34 x1 + x3 - s3 = 28
Mathematics