Solve the problem.One card is selected from a deck of cards. Find the probability of selecting a diamond or a card less than 10. (Note: The ace is considered a low card.)
A. 
B. 
C. 
D. 
Answer: D
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Write a logical statement representing the following circuit. Simplify when possible.
What will be an ideal response?
Find the unit tangent vector T and the principal unit normal vector N. r(t) = (cosh t)i + (sinh t)j + tk
A. T = 
(tanh t)i + 
j + 
(sech t)k; N = (sech t)i - (tanh t)k
B. T = - 
(tanh t sech t)i + 
j + 
(sech t)k; N = (-sech t)i - (tanh t)k
C. T = 
(tanh t sech t)i + 
j + 
(sech t)k; N = (sech2 t)i - (sinh t)k
D. T = - 
(tanh t)i + 
j + 
(sech t)k; N = (-sech t)i - (sinh t)k
Solve the problem. If necessary, round your result to the nearest tenth unless instructed differently. The precise value of your approximation may depend on the conversion path that you choose.A car's speedometer shows that the car is going 107 km/hr. What is this in miles per hour?
A. 66.3 mi/hr B. 172.3 mi/hr C. 101.2 mi/hr D. 113.4 mi/hr
Solve the problem.In a town whose population is 3000, a disease creates an epidemic. The number of people, N, infected t days after the disease has begun is given by the functionN(t) = 
. Find the number of infected people after 10 days.
A. 2737 people B. 1000 people C. 2000 people. D. 142 people