Solve the problem.A loaf of bread is removed from an oven at 
and cooled in a room whose temperature is 
. If the bread cools to 
in 20 minutes, how much longer will it take the bread to cool to 
A. 14 min
B. 15 min
C. 34 min
D. 24 min
Answer: A
Mathematics
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Solve the problem.When a ball is thrown upward at a speed of 22 m/s, its height h above the ground (in meters) after t seconds is given by the algebraic expression 
Find the height of the ball after 3 seconds.
A. 51.3 m B. 61.1 m C. 21.9 m D. 36.6 m
Mathematics
Write the satement in symbols. Let x represent the unknown number.Eight times the sum of a number and -50.
A. 8(x + (-50)) B. 8x - (-50) C. 8+ x + (-50) D. 8x + (-50)
Mathematics
Evaluate.(-4)4
A. 256 B. 64 C. -256 D. -1024
Mathematics
Use the limit definition of the partial derivative to compute the indicated partial derivative of the function at the specified point.Find 
at the point (-1, -7, 5): f(x, y, z) = 7x2y + 4y2 + 3z
What will be an ideal response?
Mathematics