What is the domain of the function f(x)=2x+5?
a. all real numbers except 2
b. all real number
c. all real numbers except 5
d. all positive real numbers

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

Write the sine and cosine values of a, b, respectively, in the figure for (1) and (2) + explanation.