Answers: 2
Mathematics, 21.06.2019 15:00
Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β
Answers: 2
Mathematics, 21.06.2019 19:00
What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.
Answers: 1
Mathematics, 21.06.2019 19:30
You have 17 cats that live in houses on your street, 24 dogs, 3 fish, and 4 hamsters. what percent of animals on your block are dogs?
Answers: 2
X – 7y + 3z = 17
5х + 2y – 2z = -57
3х – 10у - z = -11...
5х + 2y – 2z = -57
3х – 10у - z = -11...
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