Simplify.
z + 
z
A. 
z
B. 
z
C. 
z
D. 
z
Answer: D
Mathematics
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Evaluate the integral by making a substitution and then using a table of integrals. 
A. 4 sin-1
- 
+ C
B. 4 sin-1
- 
+ C
C. 
- 2 ln
+ C
D. 4 sin-1
+ x
+ C
Mathematics
Use the distributive property to multiply. Then, if possible, simplify the resulting expression.3(7 + m)
A. 21m B. 21 + m C. 21 + 7m D. 21 + 3m
Mathematics
Provide an appropriate response.If f(x) = 5 - 8x, find:(a)the domain(b)f(1)(c)f(-2)(d)f
(e)f(t)(f)f(x + 2)
What will be an ideal response?
Mathematics
For the given equation, state whether the directrix is vertical or horizontal and give its location in relation to the pole.r = 
A. Horizontal, 5 units above the pole
B. Horizontal, 5 units below the pole
C. Horizontal, 
units above the pole
D. Horizontal, 
units below the pole
Mathematics