Which polynomial is represented by the algebra tiles?

a x2 - x - 4

b x2 - x + 4

c 3x2 - 5x + 8

d 3x2 - 5x - 8

Felicity set the thermostat of her refrigerator to 37°F. The refrigerator temperature t in degrees Fahrenheit h hours after the temperature sensor in the refrigerator is activated satisfies t=1cos (1.05h) + 37.

What is the area of the dining room

2 (b + 3) = b - 4 b=?

Simplify this expressions 2sin30cos30

When the function f (x) = 4 (2) * is changed to f (x) = 4 (2) * -13, what is the effect?