Mathematics, 01.04.2021 19:10 Campos101
A23 - In class sample size problem: A company has set a goal of developing a battery that lasts five hours (300min) in continuous use. In a first test, eight of these batteries measured the following lifespans (in min.): 321, 295, 332, 351, 281, 336, 311, 253. How many batteries must we test to be 99% sure of estimating the mean lifespan to within 15 minutes
Answers: 1
Mathematics, 21.06.2019 13:20
Which statement explains how you could use coordinate geometry to prove that quadrilateral abcd is a parallelogram? -5 -4 -3 -2 -1 t 1 2 3 4 prove that all sides are congruent and have slopes that are opposite reciprocals prove that segments ad and ab are congruent and parallel prove that opposite sides are congruent and have equal slopes prove that segments bc and cd are congruent and parallel
Answers: 1
Mathematics, 21.06.2019 17:20
Match the equivalent expressions. x - 3y + 12 12 - 3y - 2x + x + 2x 3x + 2y - 2x + y + 12 3y + 12 3x + y - 12 4y + 3y + 3x - 6y - 10 - 2 x + 3y + 2x - 3x + 7 + 5 x + 3y + 12 5 + 2y + 7x - 4x + 3y - 17
Answers: 1
Mathematics, 21.06.2019 18:30
This is my question~~ ( r ^ 4 - 2r ^ 3 - 23 r ^ 2 - 4r - 32)÷(r+4) ~~ i must use long division to solve it : / i was wondering if anyone world like to solve it. and if so, share step-by-step explanations! you! ❤
Answers: 2
Mathematics, 21.06.2019 18:50
The trigonometric ratios sine and secant are reciprocals of each other
Answers: 2
A23 - In class sample size problem: A company has set a goal of developing a battery that lasts five...
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