Perform the indicated operation. Write in lowest terms.-23.0 + 19.6
A. 42.6
B. -42.6
C. 3.4
D. -3.4
Answer: D
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Translate using numbers and symbols.ten cubed
A. 310
B. 
C. 103
D. 10 ? 3
Find the arc length parameter along the curve from the point where t = 0 by evaluating 
r(t) = (1 + 5t)i + (1 + 8t)j + (4 - 4t)k
A. 4
t
B. 
t
C. 
t
D. 
t
Solve the problem.Ultraviolet solar radiation (UV) is strongly absorbed by ocean water. The intensity of the UV at a particular depth can be calculated using the equation I = I0e-0.3d, where d is the depth in centimeters (cm), I0 is the intensity at the surface, and I is the intensity at depth d. Find the depth at which the intensity is 15% of its value at the surface. Round to the nearest tenth when necessary.
A. 2.7 cm B. 6.3 cm C. 19 cm D. 9.5 cm
Provide an appropriate response.A person deposits $1000 in a savings account that pays an interest rate of 
% compounded continuously. Find the balance in the account at the end of 
years.
Fill in the blank(s) with the appropriate word(s).