Add the integers.-10 + (-20)
A. -10
B. 10
C. -30
D. 30
Answer: C
Mathematics
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Find the requested partial derivative.(?w/?z)x at 
= 
if 
and 
A. 
B. 
C. 77
D. 154
Mathematics
Rewrite the following number using digits.Seven billion
A. 7,000,000 B. 7,000,000,000 C. 7,000,000,000,000 D. 14,000,000,000
Mathematics
Find the value of the x-coordinate of the points at which the functions intersect, and approximate the area of the region described. Round to two decimal places when necessary.f(x) = sinh x, g(x) = tanh x; the region bounded by the graphs of f, g, and ln 4
A. x = 0; 0.26 B. x = 0; 0.37 C. x = 0; 1 D. x = 0; 0.33
Mathematics
Simplify. Assume that all variables represent positive real numbers.5
+ 8
A. 35
B. -45
C. 45
D. 13
Mathematics