Write the phrase as a mathematical expression. Use x as the variable.The difference of some number and 7.9
A. 7.9x
B. x + 7.9
C. x - 7.9
D. 7.9
Answer: C
Mathematics
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Factor the trinomials that are perfect-square trinomials. If it is not a perfect square, respond "not a perfect square."16x2 + 24x + 9
A. (4x + 3)(4x - 3) B. not a perfect square C. (4x - 3)2 D. (4x + 3)2
Mathematics
Establish the identity.csc2u - cos u sec u= cot2 u
What will be an ideal response?
Mathematics
Provide an appropriate response.A prime number has exactly 
factor(s).
A. 3 B. 1 C. 0 D. 2
Mathematics
Solve the system of linear equations and check any solution algebraically.
What will be an ideal response?
Mathematics