If f(x) = x^2 + 1, find f(a + 1). 1. a^2 + 2 a + 2
2. a^2 + 2
3. a^2+ a + 1
Please answer quickly!

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e. g. 98.76543).

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?