Solve the following system of equations using the elimination method. 9x – 5y = –16 and –3x + 7y = –16 A)

(–4,–4)

B)

(–2,–3)

C)

(4,4)

D)

(0,–5)

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Elizabeth is using a sample to study american alligators. she plots the lengths of their tails against their total lengths to find the relationship between the two attributes. which point is an outlier in this data set?

If value of cos330° is √3/2 then find tan165°.