5. if f(x) = -x²+x, the which of the
following expressions represents
f (x)?
(-x2+x++x)
a. limn-
0 h
(-x2+x++x)
b. limn-a-
+h)2 +x++x)
c. limn-0-
(-x2+x+ + x)
d. limn-
a
x
-a
e. none of these

In the following situation, determine whether you are asked to determine the number of permutations or combinations. then do the calculation how many ways are there to pick a starting five from a basketball team of twelve members? a. permutation; ps - 2520 b. combination; 1c, - 792 c. combination: 2cs - 2520 d. permutation; ps - 95040

This figure consists of a rectangle and semicircle. what is the perimeter of this figure use 3.14 for pi 60.84m 72.84m 79.68m 98.52m

Sanya noticed that the temperature was falling at a steady rate of 1.4 degrees every hour from the time that she first checked her outdoor thermometer. by 6 a. m., the temperature had fallen 21 degrees. which expression can you use to find how many hours earlier she had first checked the thermometer?