Rewrite the expression in terms of exponentials and simplify the results.cosh 9x + sinh 9x
A. e9x - e-9x
B. e9x
C. 2e9x
D. 9x
Answer: B
Mathematics
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Solve.
+ 
+ 
= 7
A. 
B. 
C. 
D. 
Mathematics
Factor the trinomial completely.4x3 + 8x2 - 60x
A. (4x2 + 12x)(x - 5) B. (x - 3)(4x2 + 20) C. 4x(x + 3)(x - 5) D. 4x(x - 3)(x + 5)
Mathematics
Identify any intercepts and test for symmetry. Then sketch the graph of the equation. ? y = x2- 4x ?
A. x-intercept : (0, 0), (4, 0)
y-intercept : (0, 0)
No symmetry
?
B. x-intercept : (0, 0), (-4, 0)
y-intercept : (0, 1)
No symmetry
C. x-intercept : (4, 0), (4, 0)
y-intercept : (0, 1)
No symmetry
?
D. x-intercept : (0, 0), (4, 0)
y-intercept : (0, 1)
No symmetry
?
E. x-intercept : (0, 0), (4, 0)
y-intercept : (0, -1)
No symmetry
?
Mathematics
Add.-17.6 + (-2.5)
A. -20.1 B. 20.1 C. -15.1 D. 15.1
Mathematics