Add.( - +

variablename="impvar_5471c2037e5849c08b06feea8" class="wirisformula" /> ) + ( - + ) + ( - )



What will be an ideal response?

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- +

Mathematics

Solve the problem.Which of the following are symmetries of the letter Z?

A. a reflection with axis a vertical line B. a 180° rotation C. a reflection with axis a horizontal line D. a reflection with axis a diagonal line E. none of these

Use half-angle identities to find the exact value of the expression.sin 

A.   
B. -  
C.  
D. -  

Solve the system. If the system's equations are dependent or if there is no solution, state this.  x + y + z = 7  x - y + 2z = 72x + 3z = 15

A. (1, 2, 4) B. The equations are dependent. C. No solution D. (4, 2, 1)

Find the period of the function. y = 5 cos x

A.
B.
C. 4?
D. 5