Solve the problem.Use Newton's Law of Cooling to find the temperature in the following case. A glass of water with a temperature of 3°C is placed in a room with a temperature of 20°C. One minute later the water has warmed to 8°C. After how many minutes does the water have a temperature that is 80% of the ambient temperature?
A. ? 15 min
B. ? 4 min
C. ? 7 min
D. ? 11 min
Answer: B
Mathematics
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Find the velocity, acceleration, and speed of an object with position function r(t) = 4 sinti + costj for t =  figures 4.png)
. Sketch the path of the object and its velocity and acceleration vectors.
What will be an ideal response?
Mathematics
Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.log8
A. 
log813 - log87
B. log87 - log8
C. log4
- log47
D. log8
+ log87
Mathematics
Solve the exponential equation. Round to three decimal places when necessary.(3.3)x = 45
A. 3.188 B. 3.312 C. 3.176 D. 3.201
Mathematics
Graph the equation and state its domain and range. Use interval notationx2 + y2 = 64
A. 
Domain = (-8, 8); Range = (-8, 8)
B. 
Domain = (-2
, 2
); Range = (-2
, 2
)
Mathematics