Please answer all of these problems
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Answers: 2
Mathematics, 21.06.2019 20:00
Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39
Answers: 1
Mathematics, 21.06.2019 22:00
Given sinβ
= 1/3 and 0 < β
< Ο/2 ; find tan2β
a. (4β2)/9 b. 9/7 c. (4β2)/7 d.7/9
Answers: 2
Mathematics, 21.06.2019 22:30
Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90Β° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90Β° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90Β° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90Β° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90Β° or an isosceles triangle does not have two congruent sides; true.
Answers: 3
Mathematics, 21.06.2019 22:30
Select all of the following expressions that are equal to 2.5.
Answers: 3
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