Determine weather the sequence is arithmetic. if the sequence is arithmetic, find the common difference.

a. 1, -1, -4 , -13. b . 21,25,29,33

Read the following two statements. then use the law of syllogism to draw a conclusion. if the tv is too loud, then it will give me a headache. if i have a headache, then i will have to rest.

Find the roots of the equation below. x^2 - 6 + 9 = 0

In the given triangle, ∠aed ∼ ∠ abc, ad = 6.9, ae = 7.2, de = 5.2, and bc = 10.2. find the measure of bd and ce. round your answer to the nearest tenth.