Find the expression as the cosine of an angle.
?
?
?
A. 
B. 
C. 
D. 
E. 
Answer: C
Mathematics
You might also like to view...
Solve.The perimeter of a square is 76 units. Write and solve an equation to find the length of one side, s, of the square.
A. 4s = 76; s = 19
B. s2 = 76; s = 38
C. 
= 76; s = 19
D. 4s = 76; s = 361
Mathematics
Find the function value indicated for the function. If necessary, round to two decimal places. If the function value is not a real number and does not exist, state so.Evaluate z(x) = 
for z(4)
A. not a real number
B. -3
C. -
D. 21
Mathematics
Solve for the variable.
+ 3 = 
A. x = 2 B. No solution C. x = 16 D. x = 4
Mathematics
Combine like terms whenever possible. Write the result with descending powers.-6y5 - 9y4
A. -15y5 B. -15y9 C. -15y4 D. Cannot be simplified
Mathematics