Mathematics, 02.04.2021 21:00 wolfsaway
A cone has a volume of 144π in3 and a diameter of 12 in. Wilson states that a cylinder with the same height and diameter has the same volume. Which statement explains whether or not Wilson is correct? A cylinder in which h = 12 and d = 12 has a volume of 144π in3; therefore, Wilson is correct. A cylinder in which h = 4 and d = 12 has a volume of 144π in3; therefore, Wilson is correct. A cylinder in which h = 12 and d = 12 has a volume of 432π in3; therefore, Wilson is incorrect. A cylinder in which h = 4 and d = 12 has a volume of 432π in3; therefore, Wilson is incorrect.
Answers: 2
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
Answers: 3
Mathematics, 22.06.2019 00:10
Given: p: 2x = 16 q: 3x – 4= 20 which is the converse of p - q? if 2x + 16, then 3x - 4 20. if 3x –4 +20, then 2x # 16. lf 2x = 16, then 3x - 4 = 20. lf 3x – 4= 20, then 2x = 16. o o
Answers: 1
Mathematics, 22.06.2019 01:30
Three students each examine the system of linear equations shown. 8x + 4y = 16 8x + 2y = 8 caleb says there is exactly one solution. jeremy says there is no solution. kim says there are infinitely many solutions. which student is correct? provide mathematical reasoning to support your answer. answer in complete sentences. : d
Answers: 1
A cone has a volume of 144π in3 and a diameter of 12 in. Wilson states that a cylinder with the same...
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