Solve the problem.Inclusive of a 6.7% sales tax, a diamond ring sold for $1920.60. Find the price of the ring before the tax was added. (Round to the nearest cent, if necessary.)
A. $128.68
B. $1791.92
C. $1800
D. $2049.28
Answer: C
Mathematics
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Determine whether the given function satisfies Laplace's equation.f(x, y) = cos (x) sin (-y)
A. Yes B. No
Mathematics
Find the sum.3.7 + (-2.6)
A. -1.1 B. 6.3 C. -6.3 D. 1.1
Mathematics
Solve the problem.The polynomial function H(x) = - 0.001183 x4 + 0.05495 x3 - 0.8523x2 + 9.054 x + 6.748models the age in human years, H(x), of a dog that is x years old, where x ? 1. Using the graph of this function shown below, what is the approximately equivalent dog age for a person who is 50?
A. 7 years B. 9 years C. 10 years D. 6 years
Mathematics
Find the perimeter of the figure.Find the perimeter of a lot with sides measuring 4
, 3
, 2
, and 5
yards.
A. 47
yd
B. 32 + 15
yd
C. 32
+ 15
yd
D. 64 + 15
yd
Mathematics